CI: `grcov` -> `llvm-cov` (fix test coverage issues). #158

	name: Cocoon

	on:
	push:
	branches:
	- main

	pull_request:
	branches:
	- main

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Run Rustfmt
	run: cargo fmt -- --check
	- name: Build
	run: cargo build --verbose
	- name: Build with no default features
	run: cargo build --no-default-features
	- name: Build with only "alloc" feature
	run: cargo build --no-default-features --features="alloc"
	- name: Run tests
	run: cargo test --verbose

	coverage:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	- name: Install Rust
	run: rustup update stable
	- name: Install cargo-llvm-cov
	uses: taiki-e/install-action@cargo-llvm-cov
	- name: Generate code coverage
	run: mkdir coverage && cargo llvm-cov --tests --all-features --lcov --output-path ./coverage/lcov.info
	- name: Send to Coveralls
	uses: coverallsapp/github-action@master
	with:
	github-token: ${{ secrets.GITHUB_TOKEN }}

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