mk-configure: update to 0.29.3.
mk-configure: update to 0.29.3.

Closes #9590.

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