Add missing JS dependency

Makefile

@@ -33,7 +33,7 @@ RUN_TARGET?=
 
 # Additional files and folders to remove when running clean target
 # No default value.
-CLEAN_FS?=
+CLEAN_FS?=pnpm-lock.yaml
 
 # Optional makefile to include before default targets. This can
 # be used to provide custom targets or hook up to existing targets.

package.json

@@ -5,6 +5,7 @@
     "@rollup/plugin-terser": "^0.4.4",
     "@web/dev-server-import-maps": "^0.2.1",
     "@web/test-runner": "^0.18.3",
+    "@web/test-runner-core": "^0.13.4",
     "install": "^0.13.0",
     "jquery": "^4.0.0-beta.2",
     "qunit": "^2.20.1",