fix: packages/core-components/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-HTTPPROXYMIDDLEWARE-9691387
- https://snyk.io/vuln/SNYK-JS-HTTPPROXYMIDDLEWARE-9691389

Author: snyk-bot

packages/core-components/package.json

@@ -32,11 +32,11 @@
     "start": "backstage-cli package start"
   },
   "dependencies": {
-    "@backstage/config": "workspace:^",
+    "@backstage/config": "0.1.1",
     "@backstage/core-plugin-api": "workspace:^",
     "@backstage/errors": "workspace:^",
     "@backstage/theme": "workspace:^",
-    "@backstage/version-bridge": "workspace:^",
+    "@backstage/version-bridge": "0.1.0",
     "@date-io/core": "^1.3.13",
     "@material-table/core": "^3.1.0",
     "@material-ui/core": "^4.12.2",