[DEPENDENCY] 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] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -120,7 +120,7 @@
 		"@ui5/builder": "^3.0.0-rc.1",
 		"@ui5/fs": "^3.0.0-rc.1",
 		"@ui5/logger": "^3.0.1-rc.0",
-		"ajv": "^6.12.6",
+		"ajv": "^8.12.0",
 		"ajv-errors": "^1.0.1",
 		"chalk": "^5.2.0",
 		"escape-string-regexp": "^5.0.0",