CompatHelper: add new compat entry for ITensorMPS at version 0.3, (ke… #25

Job	Run time
Julia lts - ubuntu-latest - x64 - push	3m 13s
Julia lts - windows-latest - x64 - push	4m 47s
Julia lts - macOS-latest - x64 - push	7m 1s
Julia 1 - ubuntu-latest - x64 - push	4m 54s
Julia 1 - windows-latest - x64 - push	5m 56s
Julia 1 - macOS-latest - x64 - push	6m 9s
Julia pre - ubuntu-latest - x64 - push	4m 44s
Julia pre - windows-latest - x64 - push	5m 43s
Julia pre - macOS-latest - x64 - push	10m 7s
	52m 34s

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