fix: plugins/apache-airflow/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-AJV-15274295
- https://snyk.io/vuln/SNYK-JS-QS-15268416

Author: snyk-bot

plugins/apache-airflow/package.json

@@ -22,13 +22,13 @@
     "clean": "backstage-cli package clean"
   },
   "dependencies": {
-    "@backstage/core-components": "workspace:^",
-    "@backstage/core-plugin-api": "workspace:^",
+    "@backstage/core-components": "0.1.0",
+    "@backstage/core-plugin-api": "0.1.0",
     "@material-ui/core": "^4.12.2",
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "4.0.0-alpha.61",
     "cross-fetch": "^3.1.5",
-    "qs": "^6.10.1",
+    "qs": "^6.14.2",
     "react-use": "^17.2.4"
   },
   "peerDependencies": {