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

Author: renovate[bot]

.github/workflows/update-go-dependencies.yml

@@ -37,7 +37,7 @@ jobs:
           private_key: ${{ secrets.MAINTAINER_APP_PRIVATE_KEY }}
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v8
         with:
           token: ${{ steps.generate-token.outputs.token }}
           commit-message: Update Dependencies