Update `cd` command to use correct path traversal from the `path` crate to allow for parent directory #159

	name: QEMU Test
	on:
	pull_request:
	types: [synchronize, opened, reopened]
	paths-ignore:
	- 'book/**'
	- 'c_test/**'
	- 'docker/**'
	- 'github_pages/**'
	- 'old_crates/**'
	- 'scripts/**'
	- '.gitignore'
	- 'LICENSE-MIT'
	- 'README.md'
	- 'bochsrc.txt'
	- 'rustfmt.toml'
	- 'slirp.conf'
	jobs:
	run-tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: "Initialize git submodules"
	run: \|
	git submodule update --init --recursive
	- name: "Install dependencies"
	run: \|
	sudo apt update
	sudo apt install make gcc nasm pkg-config grub-pc-bin mtools xorriso qemu qemu-kvm wget
	- name: "Run tests"
	working-directory: .
	run: make test
	timeout-minutes: 10

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