Update peter-evans/create-pull-request action to v8

Author: renovate[bot]

.github/workflows/create-test-pr.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Create pull request
         id: create-pull-request
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7
+        uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8
         with:
           token: ${{ steps.generate-token.outputs.token }}
           title: Test Pull Request (${{ steps.changes.outputs.number }})