Run make in parallel instead of adding cpus to tests #2530

	name: Codegen Tests

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	env:
	# get owner of the repository. used by forks.
	SMITHY_GO_REPOSITORY: ${{ github.event.pull_request.head.repo.owner.login }}/smithy-go

	jobs:
	codegen-test:
	name: SDK Codegen Test
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest]
	go-version: ["1.21"]
	env:
	JAVA_TOOL_OPTIONS: "-Xmx2g"
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- name: Download Coretto 17 JDK
	run: \|
	download_url="https://corretto.aws/downloads/latest/amazon-corretto-17-x64-linux-jdk.tar.gz"
	wget -O $RUNNER_TEMP/java_package.tar.gz $download_url

	- name: Set up Coretto 17 JDK
	uses: actions/setup-java@v2
	with:
	distribution: 'jdkfile'
	jdkFile: ${{ runner.temp }}/java_package.tar.gz
	java-version: 17
	architecture: x64

	- uses: actions/setup-go@v2
	with:
	go-version: ${{ matrix.go-version }}

	- name: Find smithy-go
	shell: bash
	env:
	RUNNER_TMPDIR: ${{ runner.temp }}
	run: ./ci-find-smithy-go.sh

	- name: Build and publish smithy-go
	working-directory: ${{ runner.temp }}/smithy-go
	run: make smithy-publish-local

	- name: Cleanup smithy-go
	run: rm -rf ${{ runner.temp }}/smithy-go

	- name: SDK Codegen
	run: make smithy-generate

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