upgrade to newest ebiten release

[co0p]

much changed in 2.5 -> https://ebitengine.org/en/documents/2.5.html

migrate the following if used:

2.4 and older	2.5 and newer	done
type ebiten.ColorM	type ebiten.ColorScale or the package colorm	✅
type ebiten.CompositeMode	type ebiten.Blend	x ???
type ebiten.FPSModeType	n/a	✅
const ebiten.CompositeMode*	const ebiten.Blend*	???
const ebiten.FPSMode*	n/a	✅
func (*ebiten.Image) Size	func (*ebiten.Image) Bounds	✅
func ebiten.IsScreenFilterEnabled	n/a	✅
func ebiten.IsScreenTransparent	n/a	✅
func ebiten.FPSMode	func ebiten.IsVsyncEnabled	✅
func ebiten.ScheduleFrame	ebiten.SetScreenClearedEveryFrame(false)	✅
func ebiten.SetFPSMode	func ebiten.SetVsyncEnabled	✅
func ebiten.SetInitFocused	func ebiten.RunGameWithOptions	✅
func ebiten.SetScreenFilterEnabled	interface ebiten.FinalScreenDrawer
func ebiten.SetScreenTransparent	func ebiten.RunGameWithOptions	✅
func ebitenutil.DrawLine	func vector.StrokeLine without anti-aliasing	x
func ebitenutil.DrawCircle	func vector.DrawFilledCircle without anti-aliasing	x
func ebitenutil.DrawRect	func vector.DrawFilledRect without anti-aliasing	x