release prep for 0.39.0 which adds support for sameness groups #1818

Job	Run time
get-product-version	6s
Determine Go toolchain version	8s
generate-metadata-file	25s
Go 1.22.4 darwin amd64 build	25s
Go 1.22.4 darwin arm64 build	24s
Go 1.22.4 freebsd 386 build	20s
Go 1.22.4 linux arm build	1m 20s
Go 1.22.4 freebsd amd64 build	26s
Go 1.22.4 freebsd arm build	30s
Go 1.22.4 linux arm64 build	1m 4s
Go 1.22.4 linux 386 build	40s
Go 1.22.4 windows 386 build	26s
Go 1.22.4 linux amd64 build	32s
Go 1.22.4 windows amd64 build	54s
Go 1.22.4 netbsd 386 build	25s
Go 1.22.4 netbsd amd64 build	32s
Go 1.22.4 netbsd arm build	47s
Go 1.22.4 openbsd 386 build	24s
Go 1.22.4 openbsd amd64 build	25s
Go 1.22.4 openbsd arm build	38s
Go 1.22.4 solaris amd64 build	24s
Docker arm default release build	23s
Docker arm64 default release build	21s
Docker 386 default release build	18s
Docker amd64 default release build	40s
	12m 57s

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