build: bump ajv from 8.12.0 to 8.18.0

Bumps [ajv](https://github.com/ajv-validator/ajv) from 8.12.0 to 8.18.0.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v8.12.0...v8.18.0)

---
updated-dependencies:
- dependency-name: ajv
  dependency-version: 8.18.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

packages/check-core/package.json

@@ -33,7 +33,7 @@
     "ci:build": "run-s clean lint prettier:check test:ci build docs"
   },
   "dependencies": {
-    "ajv": "^8.12.0",
+    "ajv": "^8.18.0",
     "assert-never": "^1.2.1",
     "neverthrow": "^4.2.2",
     "yaml": "^2.2.2"