Remove clean before test

[runningcode]

📜 Description

This removes the redundant dependency on cleanTest from each test task. This still allows the test to come from the cache so it doesn't really make sense.
Also add build caching for spotless format execution
#skip-changelog

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	451.30 ms	520.00 ms	68.70 ms
Size	1.58 MiB	2.08 MiB	511.07 KiB