fix: plugins/tech-insights-backend-module-jsonfc/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-AJV-15274295

Author: snyk-io[bot]

plugins/tech-insights-backend-module-jsonfc/package.json

@@ -38,7 +38,7 @@
     "@backstage/errors": "workspace:^",
     "@backstage/plugin-tech-insights-common": "workspace:^",
     "@backstage/plugin-tech-insights-node": "workspace:^",
-    "ajv": "^8.10.0",
+    "ajv": "^8.18.0",
     "json-rules-engine": "^6.1.2",
     "lodash": "^4.17.21",
     "luxon": "^3.0.0",