[chronik] Build the experimental release for all Linux platforms

Summary:
The builds are running on CI and tested already, let's build the experimental
release for all of the Linux platforms.

Test Plan: Run the gitian Linux build.

Reviewers: #bitcoin_abc, PiRK

Reviewed By: #bitcoin_abc, PiRK

Differential Revision: https://reviews.bitcoinabc.org/D15453