refactor: replace channel with callback of transport in swarm #1195

Job	Run time
Check rustfmt style && run clippy	1m 25s
Check rustfmt style && run clippy	1m 27s
Build and test (ubuntu-latest)	12m 2s
Build and test (ubuntu-latest)	13m 18s
Build and test for examples (ubuntu-latest)	2m 35s
Build and test for examples (ubuntu-latest)	2m 30s
Build and test for wasm (ubuntu-latest)	9m 41s
Build and test for wasm (ubuntu-latest)	4m 26s
Build and test for examples (macos-latest)	5m 2s
Build and test for examples (macos-latest)	5m 28s
	57m 54s

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