add sentry-okhttp module

[ToppleTheNun]

📜 Description

Add sentry-okhttp module, update existing classes in sentry-android-okhttp to use it, and mark existing classes in sentry-android-okhttp as deprecated.

💡 Motivation and Context

I use OkHttp in a purely Java project and currently maintain a fork of sentry-okhttp-android to enable us to use it, which causes us to miss upstream changes from time to time. This would enable us, and others, to be able to use an official Sentry SDK for instrumenting OkHttp.

Closes #1783.

💚 How did you test it?

I use a very similar version to the one in this PR in a project and it works. I also copied the existing tests from sentry-android-okhttp over and made sure they passed without changes.

📝 Checklist

• I reviewed the submitted code.
• 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.
• 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

[adinauer]

Thanks for the PR @ToppleTheNun sorry for the delay here. I quickly tested and looks good on a Spring backend application. Still have to review the PR, but this also needs a review from one of @romtsn @markushi or @stefanosiano so we make sure not to break existing users of sentry-android-okhttp.

[adinauer]

Left some comments. Leaving the serious part of the review to Android folks.

[ToppleTheNun]

I'm also happy to point this at the 7.0.0 branch since this could be considered a breaking change.

[romtsn]

I'm also happy to point this at the 7.0.0 branch since this could be considered a breaking change.

Yeah, I think it's a good idea to make it part of 7.0.0. I will get to this PR a bit later and change whatever is needed, but your initial work is really appreciated, thank you a lot 🙏 We'll make it part of the next 7.0.0-rc.2

[ToppleTheNun]

I updated it to be based correctly on the 7.0.0 branch.

[romtsn]

Thanks again @ToppleTheNun, great stuff! I've updated the PR with a couple of things:

• Use delegation instead of inheritance, so we don't change the class signature and break binary compatibility
• Update changelog to reflect exactly what changed
• Remove SentryOkHttpUtils from public api as it was exposed by mistake most likely