Bump ajv from 8.6.3 to 8.8.1

Bumps [ajv](https://github.com/ajv-validator/ajv) from 8.6.3 to 8.8.1.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v8.6.3...v8.8.1)

---
updated-dependencies:
- dependency-name: ajv
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -21,7 +21,7 @@
   "devDependencies": {
     "@actions/core": "^1.6.0",
     "@octokit/rest": "^18.12.0",
-    "ajv": "^8.6.3",
+    "ajv": "^8.8.1",
     "ajv-formats": "^2.1.1",
     "auto-changelog": "^2.3.0",
     "jsdom": "^18.1.0",