chore: bump anstream from 0.3.2 to 0.6.12 in /src/rust #111

Job	Run time
build (ubuntu-latest, x86_64-unknown-linux-musl)	1m 50s
build (ubuntu-latest, aarch64-unknown-linux-musl)	2m 11s
build (macos-latest, x86_64-apple-darwin)	41s
build (macos-latest, aarch64-apple-darwin)	4m 17s
build (windows-latest, x86_64-pc-windows-gnu)	4m 4s
test (macos-latest, release)	2m 18s
test (windows-latest, oldrel-1)	3m 41s
test (windows-latest, release)	2m 51s
test (windows-latest, devel)	3m 25s
test (ubuntu-latest, oldrel-1)	1m 53s
test (ubuntu-latest, release)	1m 48s
test (ubuntu-latest, devel)	4m 50s
release	0s
	33m 49s

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