chore(deps): pin dependency @octokit/openapi-types to 27.0.0 (#264)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

bun.lock

@@ -15,7 +15,7 @@
   "devDependencies": {
     "@proofdict/textlint-rule-proofdict": "3.1.2",
     "@textlint-ja/textlint-rule-no-insert-dropping-sa": "2.0.1",
-    "@octokit/openapi-types": "^27.0.0",
+    "@octokit/openapi-types": "27.0.0",
     "@types/bun": "1.3.11",
     "@types/node": "25.5.0",
     "node-fetch": "2.6.12",