Remove unneeded None annotation from Bootloader.get_default (#3680)

Author: correctmost

archinstall/lib/models/bootloader.py

@@ -31,7 +31,7 @@ def values() -> list[str]:
 		return [e.value for e in Bootloader if e != Bootloader.NO_BOOTLOADER or arch_config_handler.args.skip_boot is True]
 
 	@classmethod
-	def get_default(cls) -> None | Bootloader:
+	def get_default(cls) -> Bootloader:
 		from ..args import arch_config_handler
 
 		if arch_config_handler.args.skip_boot: