Snowbridge - Copy Rococo integration tests to Westend #17570

Job	Run time
check-dependency-rules	11s
check-fail-ci	19s
check-markdown	21s
check-readme	3m 10s
check-workspace	19s
preflight / preflight	44s
preflight / ci-versions	57s
check-rust-feature-propagation	1m 56s
fmt	1m 6s
test-rust-features	1m 55s
check-toml-format	59s
check-umbrella	2m 17s
All quick checks passed	1s
	14m 15s

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