Fix source context with configuration cache on AGP 8+

[romtsn]

📜 Description

Looks like Gradle has a bug where it queries values of providers using .zip or .flatMap too early, but using .map works, so we just use that + .get() for other providers (which will be still evaluated lazily since it's inside .map I believe)

💡 Motivation and Context

Closes #683

💚 How did you test it?

See updated integration test in the diff

📝 Checklist

• I reviewed the submitted code
• I added tests to verify the changes
• I updated the docs if needed
• No breaking changes

🔮 Next steps

[markushi]

Nice!