build(deps): bump ajv from 8.18.0 to 8.20.0 in /engine

Bumps [ajv](https://github.com/ajv-validator/ajv) from 8.18.0 to 8.20.0.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v8.18.0...v8.20.0)

---
updated-dependencies:
- dependency-name: ajv
  dependency-version: 8.20.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

engine/package-lock.json

@@ -55,7 +55,7 @@
     "url": "https://github.com/gibbon/fixedcode/issues"
   },
   "dependencies": {
-    "ajv": "^8.17.0",
+    "ajv": "^8.20.0",
     "commander": "^13.0.0",
     "handlebars": "^4.7.0",
     "picomatch": "^4.0.4",