Bump ajv from 6.12.6 to 8.7.1

Bumps [ajv](https://github.com/ajv-validator/ajv) from 6.12.6 to 8.7.1.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v6.12.6...v8.7.1)

---
updated-dependencies:
- dependency-name: ajv
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -37,7 +37,7 @@
     "test:ci": "jest --runInBand"
   },
   "dependencies": {
-    "ajv": "^6.12.6",
+    "ajv": "^8.7.1",
     "ajv-errors": "^1.0.1",
     "chalk": "^4.1.2",
     "cosmiconfig": "^7.0.1",