tests: Drop npm

The necessary NPM modules for testing are part of the
release tarball since Cockpit 237:
https://github.com/cockpit-project/cockpit/commit/c00710475

tests/run-test.sh

@@ -21,10 +21,6 @@ fi
 # tests need cockpit's bots/ libraries
 git clone --depth=1 https://github.com/cockpit-project/bots
 
-# only install a subset to save time/space
-rm package.json package-lock.json  # otherwise the command below installs *everything*, argh
-npm install axe-core chrome-remote-interface sizzle
-
 export TEST_OS="${ID}-${VERSION_ID/./-}"
 # HACK: upstream does not yet know about rawhide
 if [ "$TEST_OS" = "fedora-34" ]; then

tests/tests.yml

@@ -25,7 +25,7 @@
     - libvirt-python3
     - make
     - NetworkManager-team
-    - npm
+    - nodejs
     - python3
     - sssd-dbus
     - targetcli