fix: quote branch names in e2e action pull request workflow

Author: ChristophShyper

.github/workflows/e2e-action-pull-request.yml

@@ -416,11 +416,11 @@ jobs:
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
-          git checkout -b test/e2e-pr-labels-${TEST_ID}
+          git checkout -b "test/e2e-pr-labels-${TEST_ID}"
           echo "E2E PR label creation test $(date -u)" > e2e-pr-label-test.txt
           git add -f e2e-pr-label-test.txt
           git commit -m "test(pull-request): label creation PR test"
-          git push origin test/e2e-pr-labels-${TEST_ID}
+          git push origin "test/e2e-pr-labels-${TEST_ID}"
 
       - name: Checkout action under test
         if: ${{ inputs.mode == 'ref' }}
@@ -520,7 +520,7 @@ jobs:
           fi
           ENCODED_LABEL="$(python3 -c 'import sys, urllib.parse; print(urllib.parse.quote(sys.argv[1], safe=""))' "${TEST_LABEL}")"
           gh api --method DELETE "repos/${{ github.repository }}/labels/${ENCODED_LABEL}" 2>/dev/null || true
-          git push origin --delete test/e2e-pr-labels-${TEST_ID} 2>/dev/null || true
+          git push origin --delete "test/e2e-pr-labels-${TEST_ID}" 2>/dev/null || true
 
   pull-request-with-repository-path:
     name: Pull request using custom checkout path and explicit repository