Added "Introduced in version" section to push_options.md

doc/user/project/push_options.md

@@ -33,10 +33,10 @@ git push -o <push_option>
 
 You can use push options to skip a CI/CD pipeline, or pass environment variables.
 
-| Push option                    | Description                                                                                 |
-| ------------------------------ | ------------------------------------------------------------------------------------------- |
-| `ci.skip`                      | Do not create a CI pipeline for the latest push.                                            |
-| `ci.variable="<name>=<value>"` | Provide [environment variables](../../ci/variables/README.md) to be used in a CI pipeline, if one is created due to the push. |
+| Push option                    | Description                                                                                 | Introduced in version |
+| ------------------------------ | ------------------------------------------------------------------------------------------- |---------------------- |
+| `ci.skip`                      | Do not create a CI pipeline for the latest push.                                            | [11.7](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/15643) |
+| `ci.variable="<name>=<value>"` | Provide [environment variables](../../ci/variables/README.md) to be used in a CI pipeline, if one is created due to the push. | [12.6](https://gitlab.com/gitlab-org/gitlab/issues/27983) |
 
 An example of using `ci.skip`: