rust/rpmostree-client: parse OCI deployment manifest #3129

Job	Run time
Build Integration Test Data	51s
Build (c9s)	21m 18s
Build	17m 28s
cargo-deny	26s
Verify CXX generation	1m 21s
Differential ShellCheck	17s
Encapsulate tests	2m 20s
compose-image tests	13m 45s
Compose tests	26m 50s
Container build	2m 37s
Container Integration	3m 16s
experimental build-chunked-oci tests	3m 10s
	1h 33m 39s

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