docs: update maintenance badge #421

	on: [push, pull_request]

	name: Continuous Integration

	jobs:
	check:
	name: cargo-check
	runs-on: ubuntu-latest
	strategy:
	matrix:
	rust:
	- stable
	- beta
	- stable minus 8 releases
	steps:
	- uses: actions/checkout@v4
	- uses: Swatinem/rust-cache@v2
	- uses: dtolnay/rust-toolchain@stable
	with:
	toolchain: ${{ matrix.rust }}
	- name: default-features
	run: cargo check

	- name: check all features
	run: cargo check --all-features


	test:
	name: cargo-test ...
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@stable
	- uses: Swatinem/rust-cache@v2

	- name: test
	run: cargo test

	- name: test (with parser)
	run: cargo test --features parser

	- name: test (with TZ)
	run: cargo test --features chrono-tz

	semver:
	name: cargo-semver-checks
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: dtolnay/rust-toolchain@stable
	- uses: Swatinem/rust-cache@v2

	- name: check semver
	uses: obi1kenobi/cargo-semver-checks-action@v2

	fmtclippy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: Swatinem/rust-cache@v2
	- uses: dtolnay/rust-toolchain@stable
	with:
	components: clippy, rustfmt
	- uses: Swatinem/rust-cache@v2

	- name: cargo-clippy
	run: cargo clippy --workspace --all-targets --all-features -- -D warnings

	- name: cargo-fmt
	run: cargo fmt --all --check

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