[Keymap] keymap/sascha: disable autoshift (#11525)

Signed-off-by: Sascha Grunert <sgrunert@suse.com>

keyboards/planck/keymaps/sascha/rules.mk

@@ -1,5 +1,5 @@
-AUTO_SHIFT_ENABLE = yes
-AUTO_SHIFT_MODIFIERS = yes
+AUTO_SHIFT_ENABLE = no
+AUTO_SHIFT_MODIFIERS = no
 UNICODE_ENABLE = yes
 LTO_ENABLE = yes