Add corpus files for json-differential fuzz target #344

	# Smoke test to build fuzz targets.
	# Deserves its own action given that it depends on nightly
	# and there's currently no way to define multiple toolchains through the
	# `rust-toolchain.toml` configuration file.
	name: Build Fuzz Targets
	on:
	push:
	branches:
	- main
	pull_request:

	jobs:
	check-fuzz:
	name: Build fuzz targets
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Read pinned nightly version
	id: nightly_version
	shell: bash
	run: \|
	NIGHTLY_VERSION=$(cat pinned-nightly-version)
	echo "nightly_version=$NIGHTLY_VERSION" >> "$GITHUB_OUTPUT"

	- name: Read cargo fuzz version
	id: cargo_fuzz_version
	shell: bash
	run: \|
	CARGO_FUZZ_VERSION=$(cat pinned-cargo-fuzz-version)
	echo "cargo_fuzz_version=$CARGO_FUZZ_VERSION" >> "$GITHUB_OUTPUT"

	- name: Install nightly
	run: \|
	rustup install ${{ steps.nightly_version.outputs.nightly_version }}
	rustup override set ${{ steps.nightly_version.outputs.nightly_version }}
	rustup component add clippy

	- name: Install cargo fuzz
	run: cargo install cargo-fuzz --version=${{ steps.cargo_fuzz_version.outputs.cargo_fuzz_version }}

	- name: Build fuzz targets
	run: cargo fuzz build --dev

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