[🪵] Update peter-evans/create-pull-request action to v7.0.8

Author: renovate[bot]

.github/workflows/setup-clients.yaml

@@ -31,7 +31,7 @@ jobs:
       - name: Set up clients
         run: make setup-clients
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
         with:
           branch: "setup-clients/${{ steps.current-time.outputs.formattedTime }}"
           token: ${{ secrets.SUBSPLIT_GITHUB_TOKEN }}