Change `XcmDryRunApi::dry_run_extrinsic` to take a call instead #1032

Job	Run time
set-image	9s
check-dependency-rules	9s
check-markdown	20s
check-workspace	18s
test-rust-features	2m 18s
check-toml-format	1m 18s
check-rust-feature-propagation	2m 19s
check-umbrella	3m 2s
fmt	1m 14s
	11m 7s

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