fix(ci): add concurrency group to Check PR Labels workflow (#5032)

.github/workflows/main-push-changelog.yml

@@ -39,6 +39,10 @@ jobs:
           fromTag: ${{ steps.last_prod_tag.outputs.tag }}
           toTag: ${{ github.sha }}
           outputFile: main-push-changelog.md
+          fetchViaCommits: true
+          fetchReviewers: false
+          fetchReleaseInformation: false
+          fetchReviews: false
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 

.github/workflows/pr_enforce_labels.yml

@@ -4,12 +4,23 @@ on:
   pull_request:
     types: [edited, labeled]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 permissions:
   pull-requests: read
   contents: read
 
 jobs:
   check-label:
+    # Skip bot PRs — they already have labels from the workflows/bots that create them
+    if: >-
+      github.event.pull_request.user.login != 'renovate[bot]' &&
+      github.event.pull_request.user.login != 'github-actions[bot]' &&
+      github.event.pull_request.user.login != 'dependabot[bot]' &&
+      github.event.pull_request.head.ref != 'scheduled-updates' &&
+      github.event.pull_request.head.ref != 'l10n_main'
     runs-on: ubuntu-24.04-arm
     steps:
       - name: Check for PR labels

.github/workflows/pull-request-target.yml

@@ -5,6 +5,10 @@ on:
 # Do not execute arbitrary code on this workflow.
 # See warnings at https://docs.github.com/en/actions/reference/workflows-and-actions/events-that-trigger-workflows#pull_request_target
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
 jobs:
   labeler:
     permissions: