Fix the deployment CI that uploads the jar to the GitHub release [2]

[marcelosalloum]

What

Fix the deployment CI that uploads the jar to the GitHub release by updating the software being used from https://github.com/tcnksm/ghr to https://github.com/github-release/github-release.

Why

Close #449.

In an attempt to fix the deploy job, that's failing at:
https://github.com/stellar/java-stellar-sdk/blob/417a84bd760321dba1ded0db0b9a32455737424f/.circleci/config.yml#L20-L29

With the error message:

Failed to upload one of assets: one of the goroutines failed: failed to upload asset: /root/project/build/libs/stellar-sdk.jar: failed to upload release asset: /root/project/build/libs/stellar-sdk.jar: Post https://uploads.github.com/repos/stellar/java-stellar-sdk/releases/73913299/assets?name=stellar-sdk.jar: http2: Transport: cannot retry err [stream error: stream ID 5; REFUSED_STREAM] after Request.Body was written; define Request.GetBody to avoid this error

Example of a failed deploy: deploy (678)

There was already an attempt to solve this in #452 without success.

[sreuland]

great work, nice find on the alternative tool, and how to run it in CI.