Bump shelljs and git-rev-sync

Bumps [shelljs](https://github.com/shelljs/shelljs) to 0.8.5 and updates ancestor dependency [git-rev-sync](https://github.com/kurttheviking/git-rev-sync-js). These dependencies need to be updated together.


Updates `shelljs` from 0.7.7 to 0.8.5
- [Release notes](https://github.com/shelljs/shelljs/releases)
- [Changelog](https://github.com/shelljs/shelljs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/shelljs/shelljs/compare/v0.7.7...v0.8.5)

Updates `git-rev-sync` from 1.12.0 to 3.0.2
- [Release notes](https://github.com/kurttheviking/git-rev-sync-js/releases)
- [Commits](https://github.com/kurttheviking/git-rev-sync-js/compare/v1.12.0...v3.0.2)

---
updated-dependencies:
- dependency-name: shelljs
  dependency-type: indirect
- dependency-name: git-rev-sync
  dependency-type: direct:development
...

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

package.json

@@ -48,7 +48,7 @@
     "chalk": "^3.0.0",
     "current-git-branch": "^1.1.0",
     "eslint": "8.31.0",
-    "git-rev-sync": "^1.12.0",
+    "git-rev-sync": "^3.0.2",
     "github-api": "^3.3.0",
     "jest": "^27.1.0",
     "jest-diff": "^27.3.1",