chore(deps): bump peter-evans/create-pull-request from 6 to 8

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 6 to 8.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v6...v8)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/bump-loopstructural-pin.yml

@@ -44,7 +44,7 @@ jobs:
 
       - name: Open pull request
         if: steps.bump.outputs.changed == '1'
-        uses: peter-evans/create-pull-request@v6
+        uses: peter-evans/create-pull-request@v8
         with:
           commit-message: "fix: bump LoopStructural pin to ${{ steps.latest.outputs.version }}"
           title: "Bump LoopStructural pin to ${{ steps.latest.outputs.version }}"