Bump @octokit/rest from 18.5.5 to 18.5.6

Bumps [@octokit/rest](https://github.com/octokit/rest.js) from 18.5.5 to 18.5.6.
- [Release notes](https://github.com/octokit/rest.js/releases)
- [Commits](https://github.com/octokit/rest.js/compare/v18.5.5...v18.5.6)

---
updated-dependencies:
- dependency-name: "@octokit/rest"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -1209,9 +1209,9 @@
     universal-user-agent "^6.0.0"
 
 "@octokit/rest@^18.0.0":
-  version "18.5.5"
-  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-18.5.5.tgz#5a930736767ce4ac960b8b964c453432adf3d0a8"
-  integrity sha512-Py9sWvxBGeAwNY8UnhxP6jnq7aflvQ0uQ6gmZObyJLR9hmd5NEz9piu/A77cxV6+0l9UNACJVXX6FOnl5LIcPw==
+  version "18.5.6"
+  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-18.5.6.tgz#8c9a7c9329c7bbf478af20df78ddeab0d21f6d89"
+  integrity sha512-8HdG6ZjQdZytU6tCt8BQ2XLC7EJ5m4RrbyU/EARSkAM1/HP3ceOzMG/9atEfe17EDMer3IVdHWLedz2wDi73YQ==
   dependencies:
     "@octokit/core" "^3.2.3"
     "@octokit/plugin-paginate-rest" "^2.6.2"