Add installation tests for loonarch64

[hustcer]

Add installation tests for loonarch64, fixes #41

[github-actions]

Script Analysis

• The changes involve GitHub Actions workflow configuration for Loong64 architecture testing
• Main changes include uncommenting a job and modifying container image selections
• The workflow appears to be for CI/CD pipeline testing Nu on Loong64 platforms
• Uses QEMU emulation on ARM runners for Loong64 testing

Security Review

• ❗ No explicit input validation for container image sources (potential supply chain risk)
• ⚠️ Commented-out container images could indicate testing instability or security concerns
• No visible credential handling or sensitive data exposure in the shown changes

Optimization Suggestions

• Consider using matrix strategy for better parallel execution of different container tests
• Could potentially cache container images between runs for faster execution
• Might benefit from explicit version pinning of container images for reproducibility

Overall Quality: 3