Bump @octokit/core from 5.1.0 to 6.0.0

Bumps [@octokit/core](https://github.com/octokit/core.js) from 5.1.0 to 6.0.0.
- [Release notes](https://github.com/octokit/core.js/releases)
- [Commits](octokit/core.js@v5.1.0...v6.0.0)

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

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

package.json

@@ -17,7 +17,7 @@
     "url": "https://github.com/w3c/echidna/issues"
   },
   "dependencies": {
-    "@octokit/core": "5.1.0",
+    "@octokit/core": "6.0.0",
     "body-parser": "1.20.0",
     "compression": "1.7.4",
     "express": "4.18.1",