[android] add SDK 39 tarball

[esamelson]

Checklist

• [x] I've read the Contribution Guidelines.
• [ ] I've updated the CHANGELOG if necessary.
• [x] I've ensured the unit and smoke tests are still passing - either by running yarn test:unit and yarn test:smoke:[ios|android] or by checking the appropriate CircleCI builds' statuses.
• [x] I've manually tested whether the changes I made work as expected.

Motivation and Context

add support for SDK 39!