lightdm-gtk3-greeter: update to 2.0.3
lightdm-gtk3-greeter: update to 2.0.3

Closes: #9852 [via git-merge-pr]

floGik/void-packages,floGik/void-packages,floGik/void-packages,coredumb/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,floGik/void-packages,necrophcodr/void-packages,coredumb/void-packages,floGik/void-packages,NeoChontrix/void-packages,floGik/void-packages,NeoChontrix/void-packages,coredumb/void-packages,necrophcodr/void-packages,coredumb/void-packages,coredumb/void-packages,coredumb/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages