Add API access method tests #531

	---
	# The reason why we check for vendorability is not because we at Mullvad usually vendor
	# dependencies ourselves. But it can help some third party packagers of this project.
	# It also is a sanity check on our dependency tree. Vendoring will fail if a single
	# dependency has multiple sources: https://github.com/mullvad/mullvadvpn-app/issues/4848
	name: Rust - Vendor dependencies
	on:
	pull_request:
	paths:
	- .github/workflows/cargo-vendor.yml
	- Cargo.lock
	- '**/Cargo.toml'
	workflow_dispatch:
	jobs:
	cargo-vendor:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Install Rust
	uses: actions-rs/toolchain@v1.0.6
	with:
	toolchain: stable
	default: true

	- name: Vendor Rust dependencies
	run: cargo vendor

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