Updates the metadata to MDS 3 #835

	---
	name: Cargo Clippy
	on:
	push:
	pull_request:
	types: [opened, synchronize, reopened]

	jobs:
	cargo_clippy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: "true"
	- name: Install Rust toolchain
	run: rustup show
	- uses: actions/setup-python@v1
	with:
	python-version: 3.7
	- name: Install Python dependencies
	run: python -m pip install --upgrade pip setuptools wheel
	- name: Set up OpenSK
	run: ./setup.sh

	- uses: actions-rs/clippy-check@v1
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	args: --features std
	- name: Deny Clippy warnings (std)
	run: cargo clippy --features std -- -D warnings
	- name: Deny Clippy warnings (all)
	run: cargo clippy --features std,with_ctap1,ed25519,vendor_hid -- -D warnings
	- name: Deny Clippy warnings (all, nfc)
	run: cargo clippy --features std,with_ctap1,with_nfc,ed25519,vendor_hid -- -D warnings

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