test(compiler-cli): resolve test failure (#39568)

Narrows down an assertion in one of our tests so it's less prone to failure due to
extra commas.

PR Close #39568

packages/compiler-cli/test/compliance/r3_compiler_compliance_spec.ts

@@ -3346,10 +3346,7 @@ describe('compiler compliance', () => {
               type: Component,
               args: [{
                 template: '',
-                  providers: [{ provide: token, useExisting: Comp }],
-                }]
-              }], null, null);
-            })();
+                providers: [{ provide: token, useExisting: Comp }]
           `;
 
          const result = compile(files, angularFiles, {target: ts.ScriptTarget.ES5});