chore(deps): update peter-evans/create-pull-request action to v8.1.0

Author: renovate[bot]

.github/workflows/update-install-script.yaml

@@ -21,7 +21,7 @@ jobs:
         run: ci/build-install.sh
 
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@98357b18bf14b5342f975ff684046ec3b2a07725 # v8.0.0
+        uses: peter-evans/create-pull-request@c0f553fe549906ede9cf27b5156039d195d2ece0 # v8.1.0
         with:
           commit-message: "Update chezmoi-install.sh"
           title: "Update chezmoi-install.sh"