nixosTests.nginx-auth: migrate to runTest

Part of #386873

nixos/tests/all-tests.nix

@@ -798,7 +798,7 @@ in {
   nfs4 = handleTest ./nfs { version = 4; };
   nghttpx = handleTest ./nghttpx.nix {};
   nginx = runTest ./nginx.nix;
-  nginx-auth = handleTest ./nginx-auth.nix {};
+  nginx-auth = runTest ./nginx-auth.nix;
   nginx-etag = handleTest ./nginx-etag.nix {};
   nginx-etag-compression = handleTest ./nginx-etag-compression.nix {};
   nginx-globalredirect = handleTest ./nginx-globalredirect.nix {};

nixos/tests/nginx-auth.nix

@@ -1,6 +1,5 @@
-import ./make-test-python.nix (
-  { pkgs, ... }:
-  {
+{ pkgs, ... }:
+{
   name = "nginx-auth";
 
   nodes = {
@@ -50,5 +49,4 @@ import ./make-test-python.nix (
         "curl --fail --resolve lockedsubdir:80:127.0.0.1 http://bob:pwofb@lockedsubdir/sublocation/index.html"
     )
   '';
-  }
-)
+}