Refactor release workflow to be "partially" reusable

.github/workflows/release.yaml

@@ -41,6 +41,8 @@ jobs:
     name: Create helm release
     needs: [build-push-services]
     runs-on: ubuntu-latest
+    permissions:
+      contents: write # Allow to create a release.
     env:
       TAG: ${{ github.ref_name }}
       PROD_ORG: rancher-sandbox
@@ -57,21 +59,17 @@ jobs:
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
       - name: Package operator chart
         run: RELEASE_TAG=${GITHUB_REF##*/} CHART_PACKAGE_DIR=${RELEASE_DIR} REGISTRY=${{ env.PROD_REGISTRY }} ORG=${{ env.PROD_ORG }} make release
-
       - name: Install chart-releaser
         uses: helm/chart-releaser-action@v1.5.0
         with:
           install_only: true
-
       - name: Prepare environment for the chart releaser
         run: |
           echo "CR_OWNER=$(cut -d '/' -f 1 <<< $GITHUB_REPOSITORY)" >> $GITHUB_ENV
           echo "CR_GIT_REPO=$(cut -d '/' -f 2 <<< $GITHUB_REPOSITORY)" >> $GITHUB_ENV
           rm -rf .cr-index
           mkdir -p .cr-index
-
       - name: Run chart-releaser upload
         run: cr upload --skip-existing -c "$(git rev-parse HEAD)" --generate-release-notes --release-name-template "${{ env.TAG }}" --make-release-latest=false
-
       - name: Run chart-releaser index
         run: cr index --push --release-name-template "${{ env.TAG }}"