[TD-1474]: Version support for sync automation (#135)

* Update templates in sync bundle

* [TD-1567]: Move pac.yml to gpac bundle.

       - Also move repo-policy out of ci/

* Update gromit image version used

policy/templates/sync/.github/workflows/sync-automation.yml

@@ -35,6 +35,7 @@ on:
 jobs:
   sync:
     runs-on: ubuntu-latest
+    container: tykio/gromit:v1.5
 
     strategy:
       fail-fast: false
@@ -53,6 +54,7 @@ jobs:
       - name: sync ${{`{{matrix.branch}}`}} from master
         id: sync-changes
         run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
           git config --local user.email "policy@gromit"
           git config --local user.name "Bender"
           git fetch origin ${{`{{ matrix.branch }}`}}
@@ -74,6 +76,21 @@ jobs:
           echo "::debug::Commit ${{`{{ github.sha }} syncd for ${{matrix.branch}}`}}"
           exit 0
 
+      - name: Generate releng bundle using latest gromit templates for {{`${{matrix.branch}}`}}
+        id: gromit-bundle-gen
+        run: |
+          # add gh cli to gromit container
+          apk add --no-cache github-cli
+          # get the tarball for the latest gromit master - it will have the latest version of
+          # the templates.
+          mkdir /tmp/gromit-src && gh api -H "Accept: application/vnd.github+json"  /repos/TykTechnologies/gromit/tarball/master | tar --strip-components 1 -C /tmp/gromit-src -xzf -
+          gromit bundle gen --branch {{`${{ matrix.branch }}`}} --bundle /tmp/gromit-src/policy/templates/releng  --repo tyk .
+          git add -A && git commit -m "[CI]: Automated releng bundle sync by sync-automation"
+          git push origin {{`${{ steps.sync-changes.outputs.prbranch }}`}}
+          exit 0
+        env:
+          GITHUB_TOKEN: {{`${{ secrets.ORG_GH_TOKEN }}`}}
+
       - name: Create PR from the branch.
         id: create-pr
         uses: actions/github-script@v6