Bump peter-evans/create-pull-request from 7 to 8 (#42)

Bumps https://github.com/peter-evans/create-pull-request from 7 to 8.

Author: dependabot[bot]

.github/workflows/upgrade-dependencies.yml

@@ -13,7 +13,7 @@ jobs:
       run: pnpm upgrade --latest
 
     - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v7
+      uses: peter-evans/create-pull-request@v8
       with:
         title: "[Automated] upgrade dependencies"
         commit-message: "[Automated] upgrade dependencies"