Fix potential crash in show-commit

This failed to look up the `Environment` constant locally

app/controllers/projects/blame_controller.rb

@@ -20,7 +20,7 @@ class Projects::BlameController < Projects::ApplicationController
 
     environment_params = @repository.branch_exists?(@ref) ? { ref: @ref } : { commit: @commit }
     environment_params[:find_latest] = true
-    @environment = Environments::EnvironmentsByDeploymentsFinder.new(@project, current_user, environment_params).execute.last
+    @environment = ::Environments::EnvironmentsByDeploymentsFinder.new(@project, current_user, environment_params).execute.last
 
     @blame = Gitlab::Blame.new(@blob, @commit)
     @blame = Gitlab::View::Presenter::Factory.new(@blame, project: @project, path: @path).fabricate!

app/controllers/projects/blob_controller.rb

@@ -214,7 +214,7 @@ class Projects::BlobController < Projects::ApplicationController
   def show_html
     environment_params = @repository.branch_exists?(@ref) ? { ref: @ref } : { commit: @commit }
     environment_params[:find_latest] = true
-    @environment = Environments::EnvironmentsByDeploymentsFinder.new(@project, current_user, environment_params).execute.last
+    @environment = ::Environments::EnvironmentsByDeploymentsFinder.new(@project, current_user, environment_params).execute.last
     @last_commit = @repository.last_commit_for_path(@commit.id, @blob.path, literal_pathspec: true)
     @code_navigation_path = Gitlab::CodeNavigationPath.new(@project, @blob.commit_id).full_json_path_for(@blob.path)
 

app/controllers/projects/commit_controller.rb

@@ -167,7 +167,7 @@ class Projects::CommitController < Projects::ApplicationController
     @diffs = commit.diffs(opts)
     @notes_count = commit.notes.count
 
-    @environment = Environments::EnvironmentsByDeploymentsFinder.new(@project, current_user, commit: @commit, find_latest: true).execute.last
+    @environment = ::Environments::EnvironmentsByDeploymentsFinder.new(@project, current_user, commit: @commit, find_latest: true).execute.last
   end
 
   # rubocop: disable CodeReuse/ActiveRecord

app/controllers/projects/compare_controller.rb

@@ -136,7 +136,7 @@ class Projects::CompareController < Projects::ApplicationController
     if compare
       environment_params = source_project.repository.branch_exists?(head_ref) ? { ref: head_ref } : { commit: compare.commit }
       environment_params[:find_latest] = true
-      @environment = Environments::EnvironmentsByDeploymentsFinder.new(source_project, current_user, environment_params).execute.last
+      @environment = ::Environments::EnvironmentsByDeploymentsFinder.new(source_project, current_user, environment_params).execute.last
     end
   end