minioadmin: fix http trace properly #528

Job	Run time
Test on python 3.8 and ubuntu-latest	1m 59s
Test on python 3.8 and windows-latest	5m 56s
Test on python 3.8 and macos-latest	46s
Test on python 3.9 and ubuntu-latest	1m 54s
Test on python 3.9 and windows-latest	4m 50s
Test on python 3.9 and macos-latest	15s
Test on python 3.10 and ubuntu-latest	2m 47s
Test on python 3.10 and windows-latest	5m 14s
Test on python 3.10 and macos-latest	13s
Test on python 3.11 and ubuntu-latest	1m 35s
Test on python 3.11 and windows-latest	4m 53s
Test on python 3.11 and macos-latest	12s
Test on python 3.12 and ubuntu-latest	1m 41s
Test on python 3.12 and windows-latest	4m 40s
Test on python 3.12 and macos-latest	12s
	37m 7s

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