chore(deps): bump peter-evans/create-pull-request from 7 to 8 (#480)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7 to 8.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v7...v8)

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

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Author: dependabot[bot]

.github/workflows/reference-converter.daily.yml

@@ -40,7 +40,7 @@ jobs:
       working-directory: ./reference-lib
 
     - name: create pull request if reference.json changed
-      uses: peter-evans/create-pull-request@v7
+      uses: peter-evans/create-pull-request@v8
       if: steps.diff.outputs.reference_change
       with:
         commit-message: update reference.json