fix: -link with any value sets link regardless of URL format

Previously, /update 2 -link s would clear the link and then parse
's' as a date. Now, any value after -link is used as the link,
regardless of whether it looks like a URL.

apps/telegram-bot/commands.py

@@ -80,7 +80,7 @@ def parse_args(
         arg = args[i]
 
         if arg == "-link":
-            if i + 1 < len(args) and is_url(args[i + 1]):
+            if i + 1 < len(args):
                 link = args[i + 1]
                 i += 2
             else: