Fix test logic to check for both keymaps (#17761)

Python will evaluate first the left and then the right side of the and operator.

The left side would previously return True based on the truthiness logic that treats any non-emptry string as true.

It would not check if the desired keymap exists.

If the left side is true it will evaluate the right side which will check for the existance of a specific keymap.

With this change the check for existance of two keymaps is implemented.

lib/python/qmk/tests/test_cli_commands.py

@@ -97,13 +97,15 @@ def test_list_keyboards():
 def test_list_keymaps():
     result = check_subcommand('list-keymaps', '-kb', 'handwired/pytest/basic')
     check_returncode(result)
-    assert 'default' and 'default_json' in result.stdout
+    assert 'default' in result.stdout
+    assert 'default_json' in result.stdout
 
 
 def test_list_keymaps_long():
     result = check_subcommand('list-keymaps', '--keyboard', 'handwired/pytest/basic')
     check_returncode(result)
-    assert 'default' and 'default_json' in result.stdout
+    assert 'default' in result.stdout
+    assert 'default_json' in result.stdout
 
 
 def test_list_keymaps_community():
@@ -115,19 +117,22 @@ def test_list_keymaps_community():
 def test_list_keymaps_kb_only():
     result = check_subcommand('list-keymaps', '-kb', 'contra')
     check_returncode(result)
-    assert 'default' and 'via' in result.stdout
+    assert 'default' in result.stdout
+    assert 'via' in result.stdout
 
 
 def test_list_keymaps_vendor_kb():
     result = check_subcommand('list-keymaps', '-kb', 'ai03/lunar')
     check_returncode(result)
-    assert 'default' and 'via' in result.stdout
+    assert 'default' in result.stdout
+    assert 'via' in result.stdout
 
 
 def test_list_keymaps_vendor_kb_rev():
     result = check_subcommand('list-keymaps', '-kb', 'kbdfans/kbd67/mkiirgb/v2')
     check_returncode(result)
-    assert 'default' and 'via' in result.stdout
+    assert 'default' in result.stdout
+    assert 'via' in result.stdout
 
 
 def test_list_keymaps_no_keyboard_found():