Rust

Remove `pub` from `MockConsensusState::root` field #302

Job	Run time
Check features	7m 24s
clippy_all_features	54s
clippy_no_default_features	43s
doc_all_features	1m 53s
doc_no_default_features	1m 50s
nightly_fmt	25s
test-msrv (ubuntu-latest, unknown-linux-gnu)	3m 18s
test-stable	1m 47s
test-msrv (macos-latest, apple-darwin)	3m 36s
	21m 50s

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