Upgrade GitHub Workflow

[SchoofsKelvin]

Need to update the workflow in several ways to prevent it from breaking soon:

• Switch from ubuntu-18.04 to ubuntu-22.04 (fix The Ubuntu 18.04 Actions runner image will begin deprecation on 2022/08/08 and will be fully unsupported by 2023/04/03 actions/runner-images#6002)
• Upgrade actions/checkout@v2 to Node.js 16+
• Upgrade actions/setup-node@v1 to Node.js 16+
• Upgrade actions/cache@v2.1.4 to Node.js 16+
• Upgrade actions/upload-artifact@v2.2.1 to Node.js 16+
• Upgrade SchoofsKelvin/event-utilities@v1 to Node.js 16+
• Replace set-output and save-state commands with environment files