Add benchmarks to CI

[loloicci]

Summary

In dynamic_link branch, https://github.com/line/lbm-sdk/blob/dynamic_link/.github/workflows/bench.yml benchmarks cosmwasm API for each PRs. I suggest adding other benchmarks to the workflow following this.

There are some problems in my naive trying (https://github.com/line/lbm-sdk/runs/8133107470?check_suite_focus=true)

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