test(verify): resolve the published-package verifier's fixture module in its npm-selection harness (#11260)

tests/boundary/process/publishedPackageNpmSelection.test.ts

@@ -79,6 +79,7 @@ const prepare = async () => {
     ...[
       "verify-package-commands.mjs",
       "verifier-cleanup.mjs",
+      "verifier-fixture.mjs",
       "verifier-run.mjs",
     ].map(
       (name) =>