feat: initialize rattler-build python bindings #1685

Job	Run time
test (ubuntu-latest)	1m 57s
Build x86_64-unknown-linux-musl	3m 30s
test (macos-latest)	2m 4s
Build aarch64-unknown-linux-musl	8m 7s
test (windows-latest)	5m 44s
Build powerpc64le-unknown-linux-gnu	8m 16s
Build x86_64-apple-darwin	12m 3s
Build aarch64-apple-darwin	2m 50s
Build x86_64-pc-windows-gnu	16m 8s
Build x86_64-pc-windows-msvc	8m 51s
Post-process	3s
	1h 9m 33s

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