Require "url" field to not be empty (#25152)

data/schemas/keyboard.jsonschema

@@ -46,7 +46,8 @@
         "manufacturer": {"$ref": "./definitions.jsonschema#/text_identifier"},
         "url": {
             "type": "string",
-            "format": "uri"
+            "format": "uri",
+            "minLength": 1
         },
         "development_board": {
             "type": "string",

lib/python/qmk/cli/lint.py

@@ -168,14 +168,6 @@ def _handle_invalid_features(kb, info):
     return ok
 
 
-def _handle_invalid_config(kb, info):
-    """Check for invalid keyboard level config
-    """
-    if info.get('url') == "":
-        cli.log.warning(f'{kb}: Invalid keyboard level config detected - Optional field "url" should not be empty.')
-    return True
-
-
 def _chibios_conf_includenext_check(target):
     """Check the ChibiOS conf.h for the correct inclusion of the next conf.h
     """
@@ -292,9 +284,6 @@ def keyboard_check(kb):  # noqa C901
     if not _handle_invalid_features(kb, kb_info):
         ok = False
 
-    if not _handle_invalid_config(kb, kb_info):
-        ok = False
-
     if not _handle_duplicating_code_defaults(kb, kb_info):
         ok = False