Enable even more frozen string in lib/**/*.rb

Enables frozen string for the following files:

* lib/generators/**/*.rb
* lib/gitaly/**/*.rb
* lib/google_api/**/*.rb
* lib/haml_lint/**/*.rb
* lib/json_web_token/**/*.rb
* lib/mattermost/**/*.rb
* lib/microsoft_teams/**/*.rb
* lib/object_storage/**/*.rb
* lib/omni_auth/**/*.rb
* lib/peek/**/*.rb
* lib/rouge/**/*.rb
* lib/rspec_flaky/**/*.rb
* lib/system_check/**/*.rb

Partially addresses #47424.

5 files changed, 10 insertions, 0 deletions

diff --git a/lib/mattermost/client.rb b/lib/mattermost/client.rb
index d80cd7d2a4e..293d0c563c5 100644
--- a/lib/mattermost/client.rb
+++ b/lib/mattermost/client.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Mattermost
   ClientError = Class.new(Mattermost::Error)
 
diff --git a/lib/mattermost/command.rb b/lib/mattermost/command.rb
index 704813dfdf0..a02745486d6 100644
--- a/lib/mattermost/command.rb
+++ b/lib/mattermost/command.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Mattermost
   class Command < Client
     def create(params)
diff --git a/lib/mattermost/error.rb b/lib/mattermost/error.rb
index dee6deb7974..054bd5457bd 100644
--- a/lib/mattermost/error.rb
+++ b/lib/mattermost/error.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Mattermost
   Error = Class.new(StandardError)
 end
diff --git a/lib/mattermost/session.rb b/lib/mattermost/session.rb
index 2aa7a2f64d8..e2083848a8d 100644
--- a/lib/mattermost/session.rb
+++ b/lib/mattermost/session.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Mattermost
   class NoSessionError < Mattermost::Error
     def message
diff --git a/lib/mattermost/team.rb b/lib/mattermost/team.rb
index 95c2f6f9d6b..58120178f50 100644
--- a/lib/mattermost/team.rb
+++ b/lib/mattermost/team.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Mattermost
   class Team < Client
     # Returns all teams that the current user is a member of