Bump peter-evans/create-pull-request from 7.0.7 to 7.0.8

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 7.0.7 to 7.0.8.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@dd2324f...271a8d0)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/make-protos.yml

@@ -40,7 +40,7 @@ jobs:
         # This step opens a PR if make protos resulted in a difference from
         # what's currently in the main branch. It has no permissions to write to
         # the repository, maintainers are required to approve and merge the PRs.
-        uses: peter-evans/create-pull-request@dd2324fc52d5d43c699a5636bcf19fceaa70c284
+        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e
         with:
           commit-message: Regenerate attestation libraries
           title: Regenerate attestation libraries