CompatHelper: bump compat for Optimisers to 0.3 for package OptimizationOptimisers, (keep existing compat) #1284

Job	Run time
test (Core, 1)	36s
test (Core, 1.6)	16m 4s
test (OptimizationBBO, 1)	46s
test (OptimizationBBO, 1.6)	13m 26s
test (OptimizationCMAEvolutionStrategy, 1)	52s
test (OptimizationCMAEvolutionStrategy, 1.6)	12m 39s
test (OptimizationEvolutionary, 1)	54s
test (OptimizationEvolutionary, 1.6)	15m 54s
test (OptimizationFlux, 1)	42s
test (OptimizationFlux, 1.6)	12m 31s
test (OptimizationGCMAES, 1)	38s
test (OptimizationGCMAES, 1.6)	15m 14s
test (OptimizationMetaheuristics, 1)	48s
test (OptimizationMetaheuristics, 1.6)	13m 9s
test (OptimizationMOI, 1)	41s
test (OptimizationMOI, 1.6)	17m 32s
test (OptimizationMultistartOptimization, 1)	59s
test (OptimizationMultistartOptimization, 1.6)	16m 38s
test (OptimizationNLopt, 1)	47s
test (OptimizationNLopt, 1.6)	14m 28s
test (OptimizationNOMAD, 1)	51s
test (OptimizationNOMAD, 1.6)	15m 15s
test (OptimizationOptimJL, 1)	41s
test (OptimizationOptimJL, 1.6)	15m 25s
test (OptimizationOptimisers, 1)	52s
test (OptimizationOptimisers, 1.6)	15m 33s
test (OptimizationQuadDIRECT, 1)	2m 59s
test (OptimizationQuadDIRECT, 1.6)	12m 54s
test (OptimizationSpeedMapping, 1)	55s
test (OptimizationSpeedMapping, 1.6)	16m 39s
test (OptimizationPolyalgorithms, 1)	45s
test (OptimizationPolyalgorithms, 1.6)	12m 53s
	4h 11m 0s

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