Update to bevy 0.15 #70

Job	Run time
test-native (salva2d)	29s
build-native (salva2d, default)	1m 23s
test-native (salva3d)	27s
all-features-native (salva2d)	7m 19s
build-native (salva2d, parallel)	31s
build-wasm (salva2d)	20s
all-features-native (salva3d)	7m 23s
build-native (salva2d, sampling)	57s
build-wasm (salva3d)	20s
check-fmt	3s
build-native (salva2d, parry)	46s
examples-native (examples2d, default)	10m 31s
build-native (salva2d, rapier)	48s
examples-native (examples2d, parallel)	10m 43s
build-native (salva2d, rapier-testbed)	7m 17s
examples-native (examples3d, default)	10m 30s
build-native (salva3d, default)	2m 20s
examples-native (examples3d, parallel)	10m 44s
build-native (salva3d, parallel)	33s
build-native (salva3d, sampling)	1m 8s
build-native (salva3d, parry)	45s
build-native (salva3d, rapier)	54s
build-native (salva3d, rapier-testbed)	7m 29s
	1h 23m 40s

Provide feedback