[Backport 8.16] Don't generate coverage during standard unit test run (#2406)

Co-authored-by: Josh Mock <[email protected]>

Author: github-actions[bot]

package.json

@@ -91,6 +91,7 @@
     "tslib": "^2.4.0"
   },
   "tap": {
+    "disable-coverage": true,
     "files": [
       "test/unit/{*,**/*}.test.ts"
     ]