Use variable for branch name

Signed-off-by: egibs <[email protected]>

.github/workflows/version.yaml

@@ -56,10 +56,11 @@ jobs:
       run: |
         git config user.name "github-actions[bot]"
         git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-        git checkout -b bincapz-version-bump-$VERSION
+        BRANCH="bincapz-version-bump-$VERSION"
+        git checkout -b $BRANCH
         git add ${{ env.VERSION_FILE }}
         git commit -m "Bump bincapz version to v$VERSION"
-        git push origin bincapz-bump-version-$VERSION
+        git push origin $BRANCH
         gitsign verify $(git rev-parse HEAD) --certificate-identity-regexp="https://github.com/${{ github.repository }}" --certificate-oidc-issuer="https://token.actions.githubusercontent.com"
     - name: Create Pull Request
       run: |