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

Author: renovate[bot]

.github/workflows/update-demo.yml

@@ -24,7 +24,7 @@ jobs:
           path: ./tapes/gess.tape
           token: ${{ secrets.GITHUB_TOKEN }}
 
-      - uses: peter-evans/create-pull-request@v6
+      - uses: peter-evans/create-pull-request@v7
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           title: update docs