Don't try to run the karma config as a test

Co-authored-by: Ned Schwartz <ned@theinterned.net>

Author: koddsson

package.json

@@ -28,7 +28,7 @@
     "clean": "tsc --build --clean",
     "lint": "eslint . --ignore-path .gitignore",
     "pretest": "npm run build && npm run lint",
-    "test": "web-test-runner test/* --node-resolve",
+    "test": "web-test-runner test/*.js --node-resolve",
     "postpublish": "npm publish --ignore-scripts --@github:registry='https://npm.pkg.github.com'"
   },
   "prettier": "@github/prettier-config",