Enable frozen string for spec/graphql

Partially addresses:

https://gitlab.com/gitlab-org/gitlab/issues/27703

spec/graphql/mutations/concerns/mutations/resolves_project_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Mutations::ResolvesProject do

spec/graphql/mutations/merge_requests/set_wip_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Mutations::MergeRequests::SetWip do

spec/graphql/resolvers/concerns/resolves_pipelines_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe ResolvesPipelines do

spec/graphql/resolvers/issues_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::IssuesResolver do

spec/graphql/resolvers/merge_request_pipelines_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::MergeRequestPipelinesResolver do

spec/graphql/resolvers/merge_requests_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::MergeRequestsResolver do

spec/graphql/resolvers/metadata_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::MetadataResolver do

spec/graphql/resolvers/project_pipelines_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::ProjectPipelinesResolver do

spec/graphql/resolvers/project_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::ProjectResolver do

spec/graphql/resolvers/tree_resolver_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Resolvers::TreeResolver do

spec/graphql/types/ci/detailed_status_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::Ci::DetailedStatusType do

spec/graphql/types/ci/pipeline_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::Ci::PipelineType do

spec/graphql/types/extended_issue_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['ExtendedIssue'] do

spec/graphql/types/issue_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['Issue'] do

spec/graphql/types/merge_request_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['MergeRequest'] do

spec/graphql/types/metadata_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['Metadata'] do

spec/graphql/types/permission_types/base_permission_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::PermissionTypes::BasePermissionType do

spec/graphql/types/permission_types/issue_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::PermissionTypes::Issue do

spec/graphql/types/permission_types/merge_request_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::PermissionTypes::MergeRequest do

spec/graphql/types/permission_types/merge_request_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::MergeRequestType do

spec/graphql/types/permission_types/note_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['NotePermissions'] do

spec/graphql/types/permission_types/project_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Types::PermissionTypes::Project do

spec/graphql/types/project_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['Project'] do

spec/graphql/types/query_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['Query'] do

spec/graphql/types/repository_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['Repository'] do

spec/graphql/types/time_type_spec.rb

+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe GitlabSchema.types['Time'] do