Update Microsoft.Win32.Primitives reference's version

src/Microsoft.Net.Http.Server/project.json

@@ -14,7 +14,7 @@
     "net451": {},
     "dotnet5.4": {
       "dependencies": {
-        "Microsoft.Win32.Primitives": "4.0.1-beta-*",
+        "Microsoft.Win32.Primitives": "4.0.1-*",
         "System.Diagnostics.Debug": "4.0.11-*",
         "System.IO.FileSystem": "4.0.1-*",
         "System.Security.Claims": "4.0.1-*",