Bump repo-sync/pull-request from 2.6 to 2.8
Bump repo-sync/pull-request from 2.6 to 2.8

Bumps [repo-sync/pull-request](https://github.com/repo-sync/pull-request) from 2.6 to 2.8.
- [Release notes](https://github.com/repo-sync/pull-request/releases)
- [Commits](https://github.com/repo-sync/pull-request/compare/v2.6...v2.8)

---
updated-dependencies:
- dependency-name: repo-sync/pull-request
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
valadas/Dnn.Platform,valadas/Dnn.Platform,dnnsoftware/Dnn.Platform,dnnsoftware/Dnn.Platform,valadas/Dnn.Platform,dnnsoftware/Dnn.Platform,valadas/Dnn.Platform,dnnsoftware/Dnn.Platform,valadas/Dnn.Platform,dnnsoftware/Dnn.Platform