Simplify needs value transformation

ee/spec/lib/ee/gitlab/ci/config/entry/bridge_spec.rb

@@ -88,7 +88,7 @@ describe EE::Gitlab::Ci::Config::Entry::Bridge do
       describe '#value' do
         it 'is returns a bridge job configuration' do
           expect(subject.value).to eq(name: :my_bridge,
-                                      needs: { bridge: { pipeline: 'some/project' } },
+                                      needs: { bridge: [{ pipeline: 'some/project' }] },
                                       ignore: false,
                                       stage: 'test',
                                       only: { refs: %w[branches tags] })

ee/spec/lib/ee/gitlab/ci/config/entry/needs_spec.rb

@@ -52,7 +52,7 @@ describe ::Gitlab::Ci::Config::Entry::Needs do
 
       describe '#value' do
         it 'returns key value' do
-          expect(needs.value).to eq(pipeline: [{ name: 'first_job_name' }], bridge: { pipeline: 'some/project' })
+          expect(needs.value).to eq(pipeline: [{ name: 'first_job_name' }], bridge: [{ pipeline: 'some/project' }])
         end
       end
 

lib/gitlab/ci/config/entry/needs.rb

@@ -58,13 +58,9 @@ module Gitlab
           end
 
           def value
-            values = @entries.values.group_by(&:type).transform_values do |values|
+            @entries.values.group_by(&:type).transform_values do |values|
               values.map(&:value)
             end
-
-            values.tap do |values_hash|
-              values_hash[:bridge] = values_hash[:bridge].first if values_hash[:bridge]
-            end
           end
         end
       end

lib/gitlab/ci/yaml_processor.rb

@@ -59,7 +59,7 @@ module Gitlab
             instance: job[:instance],
             start_in: job[:start_in],
             trigger: job[:trigger],
-            bridge_needs: job.dig(:needs, :bridge)
+            bridge_needs: job.dig(:needs, :bridge)&.first
           }.compact }.compact
       end