Prepare release `2.7.0-rc.0` (#1394) #102

Job	Run time
check / test linux x86-64	1h 42m 36s
release / build x86_64-unknown-linux-gnu	13m 9s
check / test macos aarch64	52m 35s
release / build x86_64-unknown-linux-musl	13m 16s
release / build aarch64-unknown-linux-gnu	14m 22s
check / test windows x86-64	1h 39m 58s
release / build aarch64-unknown-linux-musl	14m 59s
release / build x86_64-apple-darwin	40m 6s
release / build aarch64-apple-darwin	54m 57s
release / build x86_64-pc-windows-msvc	27m 32s
release / checksums	12s
release / verify ubuntu-20.04 x86_64-unknown-linux-gnu	25s
release / verify ubuntu-22.04 x86_64-unknown-linux-gnu	28s
release / verify macos-14 aarch64-apple-darwin	33s
release / verify windows-2019 x86_64-pc-windows-msvc	1m 30s
draft release	19s
	7h 16m 57s

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