fix: plugins/tech-insights-node/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-node/package.json

@@ -32,10 +32,10 @@
     "clean": "backstage-cli package clean"
   },
   "dependencies": {
-    "@backstage/backend-common": "workspace:^",
-    "@backstage/backend-tasks": "workspace:^",
+    "@backstage/backend-common": "0.24.1",
+    "@backstage/backend-tasks": "0.6.1",
     "@backstage/config": "workspace:^",
-    "@backstage/plugin-tech-insights-common": "workspace:^",
+    "@backstage/plugin-tech-insights-common": "0.1.0",
     "@backstage/types": "workspace:^",
     "@types/luxon": "^3.0.0",
     "luxon": "^3.0.0",