fix: plugins/techdocs-backend/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BACKSTAGEPLUGINTECHDOCSNODE-15166604
- https://snyk.io/vuln/SNYK-JS-BACKSTAGEPLUGINTECHDOCSNODE-15166605
- https://snyk.io/vuln/SNYK-JS-WEBPACK-15235959
- https://snyk.io/vuln/SNYK-JS-WEBPACK-15235969

Author: snyk-bot

plugins/techdocs-backend/package.json

@@ -55,11 +55,11 @@
     "@backstage/config": "workspace:^",
     "@backstage/errors": "workspace:^",
     "@backstage/integration": "workspace:^",
-    "@backstage/plugin-catalog-common": "workspace:^",
+    "@backstage/plugin-catalog-common": "0.1.0",
     "@backstage/plugin-permission-common": "workspace:^",
-    "@backstage/plugin-search-backend-module-techdocs": "workspace:^",
-    "@backstage/plugin-search-common": "workspace:^",
-    "@backstage/plugin-techdocs-node": "workspace:^",
+    "@backstage/plugin-search-backend-module-techdocs": "0.2.0",
+    "@backstage/plugin-search-common": "0.3.1",
+    "@backstage/plugin-techdocs-node": "1.13.11",
     "@types/express": "^4.17.6",
     "dockerode": "^3.3.1",
     "express": "^4.17.1",