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

Author: renovate[bot]

.github/workflows/mega-linter.yml

@@ -112,7 +112,7 @@ jobs:
       # Create pull request if applicable
       # (for now works only on PR from same repository, not from forks)
       - name: Create Pull Request with applied fixes
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v7
         id: cpr
         if: >-
           steps.ml.outputs.has_updated_sources == 1 &&