Remove user from rotation if removed from project/group

## What does this MR do?

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This adds a service to remove a user from an On-call Rotation.

We ensure that the rotation is up to date by running the job top persist current shifts. Then, we update the `is_removed` boolean on the Participant model associated to the user/rotation.

Deletion from rotations are scoped to the member being removed:

- If a member is a project member, only that project's rotations are affected
- If a member is a group member, all of the projects within that group are affected

**Why don't we use the existing [`EditRotationService`](https://gitlab.com/gitlab-org/gitlab/-/blob/9c35c043a9ce9d70bd30ec6dc0d30991bf15ab29/ee/app/services/incident_management/oncall_rotations/edit_service.rb) service?**
The `EditRotationService` requires you to provide all `participant` params for all remaining participants, and in a format which requires the `user`, `color_palette`, `color_weight` etc. Rather than modify the `EditRotationService` to  make this easier, I chose to make a specific service for this use case.


SQL queries for finder:

Single Project:

Explain: https://explain.depesz.com/s/QToy

SQL: 
```sql
  User Load (0.5ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1 /*application:console,line:/ee/app/finders/incident_management/member_oncall_rotations_finder.rb:11:in `initialize'*/

  Project Load (0.5ms)  SELECT "projects".* FROM "projects" WHERE "projects"."id" = 4302 LIMIT 1 /*application:console,line:/ee/app/finders/incident_management/member_oncall_rotations_finder.rb:15:in `execute'*/
  
  IncidentManagement::OncallRotation Load (4.5ms)  SELECT "incident_management_oncall_rotations".* FROM "incident_management_oncall_rotations" INNER JOIN "incident_management_oncall_participants" ON "incident_management_oncall_rotations"."id" = "incident_management_oncall_participants"."oncall_rotation_id" INNER JOIN "incident_management_oncall_schedules" ON "incident_management_oncall_schedules"."id" = "incident_management_oncall_rotations"."oncall_schedule_id" WHERE "incident_management_oncall_participants"."user_id" = 1 AND "incident_management_oncall_schedules"."project_id" = 4302 

```

Group member, multiple projects:

Explain: https://explain.depesz.com/s/3sxa

SQL: 
```sql
  User Load (0.7ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1

  Namespace Load (0.5ms)  SELECT "namespaces".* FROM "namespaces" WHERE "namespaces"."id" = 4374 LIMIT 1

  IncidentManagement::OncallRotation Load (1.1ms)  SELECT "incident_management_oncall_rotations".* FROM "incident_management_oncall_rotations" INNER JOIN "incident_management_oncall_participants" ON "incident_management_oncall_rotations"."id" = "incident_management_oncall_participants"."oncall_rotation_id" INNER JOIN "incident_management_oncall_schedules" ON "incident_management_oncall_schedules"."id" = "incident_management_oncall_rotations"."oncall_schedule_id" WHERE "incident_management_oncall_participants"."user_id" = 1 AND "incident_management_oncall_schedules"."project_id" IN (SELECT "projects"."id" FROM "projects" WHERE "projects"."namespace_id" = 4374)
```

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Related to #323631

See merge request gitlab-org/gitlab!59427

This adds a service to remove a user from an On-call Rotation.

We ensure that the rotation is up to date by running the job
top persist current shifts. Then, we update the `is_removed`
boolean on the Participant model associated to the
user/rotation.

Deletion from rotations are scoped to the member being removed:

- If a member is a project member, only that project's rotations
  are affected
- If a member is a group member, all of the projects within that
  group are affected

https://gitlab.com/gitlab-org/gitlab/-/issues/323631

Added award emoji to the epics public API

See merge request gitlab-org/gitlab!60410

Fix N+1 problem in CustomEmojiFilter

See merge request gitlab-org/gitlab!60910

Contributes to https://gitlab.com/gitlab-org/gitlab/-/issues/271242

**Problem**

I discovered repetitive `SELECT 1 AS one FROM "custom_emoji" WHERE
"custom_emoji"."namespace_id" = <id> LIMIT 1` queries generated by
CustomEmojiFilter.

**Solution**

- Update test to catch N+1 queries
- Add memoization to prevent them

Add CI template field to project GraphQL type

See merge request gitlab-org/gitlab!60276

Resolve "Document in GitLab docs how to create HAR files"

See merge request gitlab-org/gitlab!47835

Fix incorrect MR popovers

See merge request gitlab-org/gitlab!60878

Update to be clear only applies to default

See merge request gitlab-org/gitlab!60865

Documentation: add 'Security considerations' section to token_overview.md

See merge request gitlab-org/gitlab!60761

Docs: Add note on TCP requirement for existing Gitaly

See merge request gitlab-org/gitlab!60673

Check duplicate package regex against version as well as name

See merge request gitlab-org/gitlab!60760

Proposal for Redis slots name for events tracked using Redis HLL

See merge request gitlab-org/gitlab!60477

Reorganize learn gitlab specs

See merge request gitlab-org/gitlab!60729

Validate foreign key on GroupHooks

See merge request gitlab-org/gitlab!60527

Fix not implemented error

See merge request gitlab-org/gitlab!60741

Fix authorizations for epic boards

See merge request gitlab-org/gitlab!60742

fix: Propagate tracking feature flag to CI report parsers

See merge request gitlab-org/gitlab!60872

Update default branch name in FE specs

See merge request gitlab-org/gitlab!60820

Create table user_credit_card_validations

See merge request gitlab-org/gitlab!60626

Populate timelogs.project_id

See merge request gitlab-org/gitlab!60439

Enable Semgrep analyzer in Configuration UI

See merge request gitlab-org/gitlab!60460

Fix group-level "Projects with releases" stats when stat is 0

See merge request gitlab-org/gitlab!60752

Add pagination spec for jira_connect app

See merge request gitlab-org/gitlab!58213

This commit fixes a bug that prevented the "Projects with releases"
stat from being rendered when the value of the statistic was 0.

Rephrase setting for recovery alerts to match expected behavior

See merge request gitlab-org/gitlab!58515

Resolve "Docs feedback: epics or snippets?"

See merge request gitlab-org/gitlab!60835

Start cleanup of "threads" page

See merge request gitlab-org/gitlab!60870

Add support for standard method call interface on Auditor

See merge request gitlab-org/gitlab!60591

Update API Fuzzing image name to use SECURE_ANALYZERS_PREFIX

See merge request gitlab-org/gitlab!60409

Create partial indexes for pending/running builds

See merge request gitlab-org/gitlab!60942

Add diff component to report_items

See merge request gitlab-org/gitlab!60188