Disable checking for updates by default.

--- picard/ui/options/general.py.orig	2023-08-16 07:38:39 UTC
+++ picard/ui/options/general.py
@@ -71,7 +71,7 @@ class GeneralOptionsPage(OptionsPage):
         TextOption("persist", "oauth_access_token", ""),
         IntOption("persist", "oauth_access_token_expires", 0),
         TextOption("persist", "oauth_username", ""),
-        BoolOption("setting", "check_for_updates", True),
+        BoolOption("setting", "check_for_updates", False),
         IntOption("setting", "update_check_days", 7),
         IntOption("setting", "update_level", DEFAULT_PROGRAM_UPDATE_LEVEL),
         IntOption("persist", "last_update_check", 0),
