Github Action for setting up Mojo

Quick and dirty Github Action for setting up Mojo.

Usage:

name: Test Setup Mojo Action

on: [push]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Setup Mojo
      uses: kszucs/setup-mojo@main
      with:
        version: '2024.7.1805'
    - name: Verify Mojo installation
      run: |
        mojo --version
        echo "Modular Home: $MODULAR_HOME"

TODOs:

• Prefix the installation path with the version
• Bake in caching to speed up the installation
• Test other platforms