update repository link of mackerel-plugin-dice #21

	name: CI

	on:
	push:
	branches:
	- main
	pull_request:

	permissions:
	contents: read

	jobs:
	test:
	runs-on: ${{ matrix.runs-on }}
	strategy:
	fail-fast: false
	matrix:
	runs-on: [ubuntu-latest, macos-latest, windows-latest]
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Cache dependencies
	uses: Swatinem/rust-cache@v2
	- name: Clippy
	run: cargo clippy
	- name: Test
	run: cargo test

	example:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Cache dependencies
	uses: Swatinem/rust-cache@v2
	- name: Test README.md example
	run: \|
	sed -n '/```rust/,/```/{//!p;}' README.md > src/main.rs
	sed -i '/^\[dependencies\]$/arand = "0"' Cargo.toml
	cargo run

Provide feedback