add support for vault-transport-max-conns-per-host #1276

Job	Run time
get-product-version	4s
Determine Go toolchain version	7s
generate-metadata-file	28s
Go 1.21.5 linux arm build	55s
Go 1.21.5 freebsd 386 build	20s
Go 1.21.5 darwin amd64 build	1m 3s
Go 1.21.5 linux arm64 build	55s
Go 1.21.5 freebsd amd64 build	20s
Go 1.21.5 darwin arm64 build	1m 19s
Go 1.21.5 freebsd arm build	32s
Go 1.21.5 linux 386 build	56s
Go 1.21.5 windows 386 build	21s
Go 1.21.5 linux amd64 build	53s
Go 1.21.5 windows amd64 build	25s
Go 1.21.5 netbsd 386 build	24s
Go 1.21.5 netbsd amd64 build	28s
Go 1.21.5 netbsd arm build	25s
Go 1.21.5 openbsd 386 build	20s
Go 1.21.5 openbsd amd64 build	24s
Go 1.21.5 openbsd arm build	21s
Go 1.21.5 solaris amd64 build	25s
Docker arm default release build	23s
Docker arm64 default release build	24s
Docker 386 default release build	24s
Docker amd64 default release build	19s
	12m 55s

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