Drop lighthouse performance check to 0.7

[rajsite]

Pull Request

🤨 Rationale

Looks like the current lighthouse perf for the angular example app has lowered to high 0.7 / low 0.8 and is failing intermittently.

👩‍💻 Implementation

• Bump the current lighthouse performance check from 0.8 to 0.7
• Updated Lighthouse performance metric assert dropped from 0.9 to 0.7 #2281

🧪 Testing

Rely on CI

✅ Checklist

• I have updated the project documentation to reflect my changes or determined no changes are needed.

[rajsite]

Bypassing as it essentially continues the trend from the linked issue. @jattasNI is any follow-up the issue would be a good spot