Add support for assume role session tags #1049

Job	Run time
build_under_wasm	17s
build (ubuntu-22.04)	16s
build_all_features (ubuntu-22.04)	42s
build_single_feature (services-aliyun)	28s
build (macos-13)	26s
build_all_features (macos-13)	57s
build_single_feature (services-aws)	28s
check	1m 2s
build (windows-2022)	1m 5s
build_single_feature (services-azblob)	27s
build_all_features (windows-2022)	3m 14s
build_single_feature (services-google)	28s
test_aws_web_identity	0s
build_single_feature (services-huaweicloud)	16s
test_gcs_web_identify	0s
test_tencent_cloud_web_identify	0s
build_single_feature (services-oracle)	28s
unit	1m 22s
build_single_feature (services-tencent)	20s
	12m 16s

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