fix(deps): bump @octokit/rest from 18.6.7 to 18.7.1 (#720)

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 18.6.7 to 18.7.1.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](octokit/rest.js@v18.6.7...v18.7.1)

---
updated-dependencies:
- dependency-name: "@octokit/rest"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -43,7 +43,7 @@
     }
   },
   "dependencies": {
-    "@octokit/rest": "^18.6.7",
+    "@octokit/rest": "^18.7.1",
     "atom-modal-views": "^1.0.14",
     "deep-object-diff": "^1.1.0",
     "diff": "^5.0.0",