Update peter-evans/create-pull-request action to v7

Author: renovate[bot]

.github/workflows/locale_po_to_json.yaml

@@ -40,7 +40,7 @@ jobs:
     - name: Run app:locale:po_to_json
       run: bundle exec rake app:locale:po_to_json
     - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v6
+      uses: peter-evans/create-pull-request@v7
       with:
         add-paths: |
           app/javascript/oldjs/locale

.github/workflows/yarn_lock.yaml

@@ -26,7 +26,7 @@ jobs:
         yarn install
         git diff
     - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v6
+      uses: peter-evans/create-pull-request@v7
       with:
         add-paths: |
           yarn.lock