fix: app/angular/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-CACHEBASE-1054631

app/angular/package.json

@@ -40,7 +40,7 @@
     "@types/webpack-env": "^1.15.2",
     "autoprefixer": "^9.7.6",
     "core-js": "^3.0.1",
-    "fork-ts-checker-webpack-plugin": "^4.0.3",
+    "fork-ts-checker-webpack-plugin": "^5.0.0",
     "global": "^4.3.2",
     "postcss-loader": "^3.0.0",
     "react": "^16.13.1",
@@ -50,7 +50,7 @@
     "strip-json-comments": "^3.0.1",
     "ts-loader": "^6.0.1",
     "tsconfig-paths-webpack-plugin": "^3.2.0",
-    "webpack": "^4.43.0"
+    "webpack": "^5.0.0"
   },
   "devDependencies": {
     "@types/autoprefixer": "^9.4.0"