Add type hints for MinioAdmin class #164

Job	Run time
Test on python 3.7 and ubuntu-latest	2m 6s
Test on python 3.7 and windows-latest	2m 33s
Test on python 3.7 and macos-latest	23s
Test on python 3.8 and ubuntu-latest	1m 46s
Test on python 3.8 and windows-latest	2m 26s
Test on python 3.8 and macos-latest	14s
Test on python 3.9 and ubuntu-latest	1m 43s
Test on python 3.9 and windows-latest	2m 16s
Test on python 3.9 and macos-latest	14s
Test on python 3.10 and ubuntu-latest	1m 45s
Test on python 3.10 and windows-latest	1m 52s
Test on python 3.10 and macos-latest	21s
Test on python 3.11 and ubuntu-latest	1m 23s
Test on python 3.11 and windows-latest	2m 33s
Test on python 3.11 and macos-latest	19s
	21m 54s

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