Enable some frozen string in lib/gitlab

Enable frozen string for the following files:

* lib/gitlab/auth/**/*.rb
* lib/gitlab/badge/**/*.rb
* lib/gitlab/bare_repository_import/**/*.rb
* lib/gitlab/bitbucket_import/**/*.rb
* lib/gitlab/bitbucket_server_import/**/*.rb
* lib/gitlab/cache/**/*.rb
* lib/gitlab/checks/**/*.rb

Partially addresses #47424.

9 files changed, 18 insertions, 0 deletions

diff --git a/lib/gitlab/badge/base.rb b/lib/gitlab/badge/base.rb
index 909fa24fa90..fb55b9e2f1f 100644
--- a/lib/gitlab/badge/base.rb
+++ b/lib/gitlab/badge/base.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     class Base
diff --git a/lib/gitlab/badge/coverage/metadata.rb b/lib/gitlab/badge/coverage/metadata.rb
index e898f5d790e..9181ba2d4b0 100644
--- a/lib/gitlab/badge/coverage/metadata.rb
+++ b/lib/gitlab/badge/coverage/metadata.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     module Coverage
diff --git a/lib/gitlab/badge/coverage/report.rb b/lib/gitlab/badge/coverage/report.rb
index 16fd6f01495..a7fcb6b0fca 100644
--- a/lib/gitlab/badge/coverage/report.rb
+++ b/lib/gitlab/badge/coverage/report.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     module Coverage
diff --git a/lib/gitlab/badge/coverage/template.rb b/lib/gitlab/badge/coverage/template.rb
index afbf9dd17e3..817dc28f84a 100644
--- a/lib/gitlab/badge/coverage/template.rb
+++ b/lib/gitlab/badge/coverage/template.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     module Coverage
diff --git a/lib/gitlab/badge/metadata.rb b/lib/gitlab/badge/metadata.rb
index 8ad6f3cb986..b9ae68134b0 100644
--- a/lib/gitlab/badge/metadata.rb
+++ b/lib/gitlab/badge/metadata.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     ##
diff --git a/lib/gitlab/badge/pipeline/metadata.rb b/lib/gitlab/badge/pipeline/metadata.rb
index db1e9f8cfb8..d4d789558c9 100644
--- a/lib/gitlab/badge/pipeline/metadata.rb
+++ b/lib/gitlab/badge/pipeline/metadata.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     module Pipeline
diff --git a/lib/gitlab/badge/pipeline/status.rb b/lib/gitlab/badge/pipeline/status.rb
index d1d9b7949f5..37e61f07e5b 100644
--- a/lib/gitlab/badge/pipeline/status.rb
+++ b/lib/gitlab/badge/pipeline/status.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     module Pipeline
diff --git a/lib/gitlab/badge/pipeline/template.rb b/lib/gitlab/badge/pipeline/template.rb
index e09db32262d..64c3dfcd10b 100644
--- a/lib/gitlab/badge/pipeline/template.rb
+++ b/lib/gitlab/badge/pipeline/template.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     module Pipeline
diff --git a/lib/gitlab/badge/template.rb b/lib/gitlab/badge/template.rb
index bfeb0052642..ed2ec50b197 100644
--- a/lib/gitlab/badge/template.rb
+++ b/lib/gitlab/badge/template.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Gitlab
   module Badge
     ##