fix(deps): bump @octokit/fixtures from 21.2.3 to 21.2.4

Bumps [@octokit/fixtures](https://github.com/octokit/fixtures) from 21.2.3 to 21.2.4.
- [Release notes](https://github.com/octokit/fixtures/releases)
- [Commits](octokit/fixtures@v21.2.3...v21.2.4)

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

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

package.json

@@ -37,7 +37,7 @@
   },
   "homepage": "https://github.com/octokit/fixtures-server#readme",
   "dependencies": {
-    "@octokit/fixtures": "21.2.3",
+    "@octokit/fixtures": "21.2.4",
     "cachimo": "^2.0.1",
     "console-log-level": "^1.4.0",
     "cors": "^2.8.4",