[GH] Add verification for the kotlin-serialization artifact
[GH] Add verification for the kotlin-serialization artifact

These artifacts are signed so gradle should be able to validate them but for some reason, it is not working on the CI.
(couldn't reproduce locally).

Added the manually calculated sha (of the prebuilt artfact) seems to fix CI.

Bug: n/a
Test: CI

This is an imported pull request from https://github.com/androidx/androidx/pull/371.

Resolves #371
Github-Pr-Head-Sha: da43fec756bb1547c2e63566633763e62c6cd3ad
GitOrigin-RevId: 1a5a5393975aed8eae84615d000db9d5e295ffd9
Change-Id: I5e7d5c29793b0406098837f95d8cda3e9a15545d

androidx/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,AndroidX/androidx,AndroidX/androidx,androidx/androidx,androidx/androidx,androidx/androidx