Run OneLocBuild on dev and release branches (#6865) (#6873)

Author: zivkan

eng/pipelines/official.yml

@@ -65,7 +65,6 @@ variables:
   RunTestsOnMac: ${{ parameters.RunTestsOnMac }}
   RunMonoTestsOnMac: ${{ parameters.RunMonoTestsOnMac }}
   RunStaticAnalysis: ${{ parameters.RunStaticAnalysis }}
-  OneLocBranch: 'dev'
   SourceBranch: $[replace(variables['Build.SourceBranch'], 'refs/heads/', '')]
 
 extends:
@@ -94,9 +93,7 @@ extends:
     - template: /eng/pipelines/templates/pipeline.yml@self
       parameters:
         isOfficialBuild: true
-        # Only run against dev.
-        # To request a change in localization branch, see https://github.com/dotnet/arcade/blob/main/Documentation/OneLocBuild.md#releasing-with-onelocbuild-using-arcade
-        ${{ if eq(variables['Build.SourceBranch'], format('refs/heads/{0}', variables['OneLocBranch'])) }}:
+        ${{ if or(eq(variables['Build.SourceBranch'], 'refs/heads/dev'), startsWith(variables['Build.SourceBranch'], 'refs/heads/release/')) }}:
           RunOneLocBuild: true
         RunBuildForPublishing: ${{parameters.RunBuildForPublishing}}
         RunCrossFrameworkTestsOnWindows: ${{parameters.RunCrossFrameworkTestsOnWindows}}