build(deps): bump ajv from 6.12.6 to 8.12.0

Bumps [ajv](https://github.com/ajv-validator/ajv) from 6.12.6 to 8.12.0.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v6.12.6...v8.12.0)

---
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

@@ -21,7 +21,7 @@
     "@oclif/core": "^1.15.0",
     "@parcel/core": "^2.7.0",
     "@parcel/reporter-cli": "^2.7.0",
-    "ajv": "^6",
+    "ajv": "^8",
     "chalk": "^4",
     "chokidar": "^3.5.2",
     "debug": "^4.1.1",