Revert "Test for one specific test that works"

This reverts commit 46b8dac.

.github/workflows/test.yml

@@ -28,5 +28,5 @@ jobs:
       - name: "Test: info"
         run: ./plextraktsync.sh info
       - name: "Test: pytest"
-        run: pytest tests/test_plugin.py
+        run: pytest
 # vim:ts=2:sw=2:et