[docs] Rust以外の１つの言語でのコア機能追加実装はしない方針であることを明記 (#632) #1247

	name: cargo-deny
	on:
	push:
	pull_request:
	defaults:
	run:
	shell: bash
	jobs:
	cargo-deny:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v3
	- name: Install cargo-binstall
	uses: taiki-e/install-action@cargo-binstall
	- name: Install cargo-deny
	run: cargo binstall cargo-deny@^0.13 --no-confirm --log-level debug
	- name: cargo-deny
	run: \|
	if ${{ !!github.event.release }}; then
	cargo deny --all-features check
	else
	cargo deny --all-features check -W denied
	fi

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