Merge branch 'merge/release/2.2-to-master' of https://github.com/dotnet-maestro-bot/AspNetCore into merge/release/2.2-to-master

Commit migrated from dotnet/aspnetcore@b2ee8e6b66

src/content/Angular-CSharp/ClientApp/package.json

@@ -27,7 +27,7 @@
     "rxjs": "^6.0.0",
     "zone.js": "^0.8.26",
     "aspnet-prerendering": "^3.0.1",
-    "bootstrap": "^4.1.3",
+    "bootstrap": "^4.3.1",
     "jquery": "3.3.1",
     "popper.js": "^1.14.3"
   },