Fix CI: use setup-mold action, update Rust to 1.89+, use rust-cache@v2 #24

	name: CI

	on:
	push:
	branches: [main, develop]
	pull_request:
	branches: [main]

	env:
	CARGO_TERM_COLOR: always

	jobs:
	test:
	name: Test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust: [1.89.0, stable]

	steps:
	- uses: actions/checkout@v4

	- name: Setup mold linker
	uses: rui314/setup-mold@v1

	- name: Install Rust
	uses: dtolnay/rust-toolchain@master
	with:
	toolchain: ${{ matrix.rust }}
	components: rustfmt, clippy

	- name: Setup Rust cache
	uses: Swatinem/rust-cache@v2
	with:
	key: ${{ matrix.rust }}

	- name: Check formatting
	run: cargo fmt -- --check

	- name: Run clippy
	run: cargo clippy -- -D warnings

	- name: Run tests
	run: cargo test --verbose

	security:
	name: Security audit
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- name: Setup mold linker
	uses: rui314/setup-mold@v1

	- name: Install Rust
	uses: dtolnay/rust-toolchain@master
	with:
	toolchain: stable

	- name: Install cargo-audit
	run: cargo install cargo-audit

	- name: Run security audit
	run: cargo audit

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