ci: fix concurrent createrepo

As createrepo cannot run concurrently, the pipeline failed sometimes,
because uploads happend at the same time causing concurrent createrepo
calls.

Fix this by moving createrepo into another job that runs after the build
job completed.

Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be>

Author: dupondje

.github/workflows/build.yml

@@ -83,7 +83,6 @@ jobs:
           source: engine-appliance/tmp.repos/RPMS/x86_64/*.rpm
           target: github-ci/ovirt-appliance-${{ github.event.inputs.distro-variant == '' && 'copr' || github.event.inputs.distro-variant }}/${{ matrix.build-os }}
           cleanup: yes
-          createrepo: yes
           # keep 4 last builds + repodata
           keep_files_count: 17
 
@@ -98,12 +97,30 @@ jobs:
         run: |
           [[ -z "${{ github.event.inputs.keep_workdir }}" ]] && rm -rf $PWD/*
 
+  createrepo-matrix:
+    strategy:
+      fail-fast: false
+      matrix:
+        build-os: ['el9', 'el10']
+    runs-on: ubuntu-latest
+    needs:
+      - build-matrix
+    steps:
+      - name: Create or update repository metadata
+        uses: ovirt/ovirt-resources-upload-action@main
+        with:
+          username: ${{ secrets.SSH_USERNAME_FOR_RESOURCES_OVIRT_ORG }}
+          key: ${{ secrets.SSH_KEY_FOR_RESOURCES_OVIRT_ORG }}
+          known_hosts: ${{ secrets.KNOWN_HOSTS_FOR_RESOURCES_OVIRT_ORG }}
+          target: github-ci/ovirt-appliance-${{ github.event.inputs.distro-variant == '' && 'copr' || github.event.inputs.distro-variant }}/${{ matrix.build-os }}
+          createrepo: yes
 
   close-build-issue-on-success:
     name: Report workflow success
     runs-on: ubuntu-latest
     needs:
       - build-matrix
+      - createrepo-matrix
     steps:
       - name: Checkout
         uses: ovirt/checkout-action@main
@@ -123,9 +140,10 @@ jobs:
   open-build-issue-on-failure:
     name: Report workflow failure
     runs-on: ubuntu-latest
-    if: ${{ always() && (needs.build-matrix.result=='failure') }}
+    if: ${{ always() && ((needs.build-matrix.result=='failure') || (needs.createrepo-matrix.result=='failure')) }}
     needs:
       - build-matrix
+      - createrepo-matrix
 
     steps:
       - name: Checkout