fix(build): no test case will throw error (#5032)

`vitest` will throw error by default if no test is found. To suppress this error, we need to add `--passWithNoTests` to the options.

An alternative is to set up a `vitest.config` file and define that option. That's probably overdone since emitter codes are no longer maintained here.

eng/scripts/Test-Packages.ps1

@@ -37,7 +37,7 @@ try {
             Invoke-LoggedCommand "npm run prettier" -GroupOutput
             Invoke-LoggedCommand "npm run lint" -GroupOutput
             Invoke-LoggedCommand "npm run build" -GroupOutput
-            Invoke-LoggedCommand "npm run test" -GroupOutput
+            Invoke-LoggedCommand "npm run test -- --passWithNoTests" -GroupOutput
         }
         finally {
             Pop-Location