fix: Okhttp-integration version check

[romtsn]

📜 Description

If the auto-installation feature is disabled, okhttp instrumentation would crash the app (if there were no okhttp integration on the classpath), because we were checking for the wrong dependency (sentry-android-core instead of sentry-android-okhttp).

Now we just collect all the io.sentry dependencies and persists them in a map to later check for the respective module version when selecting instrumentables.

💡 Motivation and Context

Closes #326

💚 How did you test it?

Manually and unit + integration tests

📝 Checklist

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

🔮 Next steps