Update grape gem to 1.5.2

Fixes Ruby 2.7 warnings

CHANGELOG:
https://github.com/ruby-grape/grape/blob/master/CHANGELOG.md

Gemfile

@@ -81,7 +81,7 @@ gem 'gitlab_omniauth-ldap', '~> 2.1.1', require: 'omniauth-ldap'
 gem 'net-ldap', '~> 0.16.3'
 
 # API
-gem 'grape', '~> 1.5.1'
+gem 'grape', '~> 1.5.2'
 gem 'grape-entity', '~> 0.7.1'
 gem 'rack-cors', '~> 1.0.6', require: 'rack/cors'
 

Gemfile.lock

@@ -495,7 +495,7 @@ GEM
       signet (~> 0.14)
     gpgme (2.0.20)
       mini_portile2 (~> 2.3)
-    grape (1.5.1)
+    grape (1.5.2)
       activesupport
       builder
       dry-types (>= 1.1)
@@ -1387,7 +1387,7 @@ DEPENDENCIES
   google-api-client (~> 0.33)
   google-protobuf (~> 3.12)
   gpgme (~> 2.0.19)
-  grape (~> 1.5.1)
+  grape (~> 1.5.2)
   grape-entity (~> 0.7.1)
   grape-path-helpers (~> 1.6.1)
   grape_logging (~> 1.7)

changelogs/unreleased/id-bump-grape.yml

+---
+title: Update grape gem to 1.5.2
+merge_request: 53547
+author:
+type: other

spec/deprecation_toolkit_env.rb

@@ -58,9 +58,6 @@ module DeprecationToolkitEnv
       spec/support/gitlab_experiment.rb
       activerecord-6.0.3.4/lib/active_record/migration.rb
       devise-4.7.3/lib/devise/test/controller_helpers.rb
-      grape-1.5.1/lib/grape/middleware/stack.rb
-      grape-1.5.1/lib/grape/validations/validators/coerce.rb
-      grape_logging-1.8.3/lib/grape_logging/middleware/request_logger.rb
       activesupport-6.0.3.4/lib/active_support/cache.rb
       factory_bot-6.1.0/lib/factory_bot/decorator.rb
       batch-loader-1.4.0/lib/batch_loader/graphql.rb