gifski: update to 0.6.1.
gifski: update to 0.6.1.

Closes #9260.

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