Add autoUploadSourceContextBuildTypes property

[markushi]

📜 Description

Fixes #661

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

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

🔮 Next steps

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- Add autoUploadSourceContextBuildTypes property ([#680](https://github.com/getsentry/sentry-android-gradle-plugin/pull/680))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

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[markushi]

I'm not really sure if we should limit ourselves to build types, should add support for flavors too?