npmHooks.npmConfigHook: also patch shebangs after rebuilding

Changed files
+2
pkgs
build-support
node
build-npm-package
+2
pkgs/build-support/node/build-npm-package/hooks/npm-config-hook.sh
···
rm node_modules/.meow
fi
echo "Finished npmConfigHook"
}
···
rm node_modules/.meow
fi
+
patchShebangs node_modules
+
echo "Finished npmConfigHook"
}