Removed sp-arithmetic #500

	name: Avail Core CI
	on:
	push:
	branches:
	- main
	- develop
	- will/grid-refactor
	pull_request:
	branches:
	- main
	- develop
	- will/grid-refactor

	jobs:
	build_and_test:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	# A repository can have up to 10GB of caches.
	# Check https://github.com/actions/cache for details.
	- uses: actions/cache@v3
	with:
	path: \|
	~/.cargo/bin/
	~/.cargo/registry/index/
	~/.cargo/registry/cache/
	~/.cargo/git/db/
	target/
	key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

	- name: Install Rust toolchain 1.64
	uses: actions-rs/toolchain@v1
	with:
	toolchain: 1.64
	components: clippy, llvm-tools-preview
	default: true
	profile: minimal

	- name: Check TOML formatting
	run: \|
	cargo install zepter --locked --version 0.11.0 -q -f --no-default-features && zepter --version
	zepter format features

	- name: Check code formatting
	uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --check

	- name: Check Clippy
	uses: actions-rs/cargo@v1
	with:
	command: clippy
	args: --workspace --features "avail-core/runtime"

	- name: Run tests
	uses: actions-rs/cargo@v1
	with:
	command: test
	args: --workspace --features "avail-core/runtime"

Provide feedback