support AWS_METADATA_SERVICE envs on EC2 #2196

Job	Run time
Go stable Test on ubuntu-latest	24s
Go 1.21 Test on ubuntu-latest	25s
Go 1.20 Test on ubuntu-latest	19s
Go 1.19 Test on ubuntu-latest	21s
Go 1.18 Test on ubuntu-latest	25s
Go stable Test on windows-latest	2m 0s
Go 1.21 Test on windows-latest	3m 1s
Go 1.20 Test on windows-latest	2m 28s
Go 1.19 Test on windows-latest	2m 59s
Go 1.18 Test on windows-latest	1m 25s
Go stable Test on macos-latest	45s
Go 1.21 Test on macos-latest	1m 4s
Go 1.20 Test on macos-latest	37s
Go 1.19 Test on macos-latest	36s
Go 1.18 Test on macos-latest	58s
Go 1.21 Test on ubuntu-latest	54s
finish	4s
	18m 45s

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