Merge pull request #216 from nervosnetwork/update-fee-rate-checker #605

Job	Run time
Checks / Clippy	7m 36s
Checks / Format	12s
Tests / Build & Test (Wasm)	5m 14s
Tests / Build & Test (macos-latest)	9m 45s
Tests / Build & Test (windows-2019)	15m 34s
Tests / Build & Test (ubuntu-latest)	13m 20s
Code Coverage (ubuntu-latest)	11m 40s
	1h 3m 21s

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