build: update check given leading stdlib prefix is already included

Author: Planeshifter

.github/workflows/scripts/run_affected_tests

@@ -145,7 +145,7 @@ main() {
 
 	# Build native add-ons for packages (if applicable):
 	for pkg in ${packages}; do
-		if [ -f "lib/node_modules/@stdlib/${pkg}/binding.gyp" ]; then
+		if [ -f "lib/node_modules/${pkg}/binding.gyp" ]; then
 			NODE_ADDONS_PATTERN="${pkg}" make install-node-addons
 		fi
 	done