Labels synchronization in all Maven repositories

.github/workflows/labels-sync.yml

@@ -26,15 +26,31 @@ on:
         required: true
 
 jobs:
+  repos:
+    name: Prepare repositories list
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.repo.outputs.matrix }}
+
+    steps:
+      - id: repo
+        run: |
+          {
+            echo 'matrix<<EOF'          
+            curl -s https://gitbox.apache.org/repositories.json | jq '.projects.maven.repositories | to_entries | sort_by(.key) | .[] | select(.value.description | contains("archived") | not) | .key' | jq -sc
+            echo 'EOF'
+          } >> "$GITHUB_OUTPUT"
+          
+          cat "$GITHUB_OUTPUT"
+
   label-sync:
     runs-on: ubuntu-latest
+    needs: repos
     strategy:
       fail-fast: false
-      max-parallel: 20
+      max-parallel: 10
       matrix:
-        repo:
-          - maven-changes-plugin
-          - maven-gh-actions-shared
+        repo: ${{ fromJSON( needs.repos.outputs.matrix ) }}
 
     steps:
       - name: Mask GitHub token