Extend artifact lifetime for Cloudsmith build jobs

Extend artifact lifetime for Cloudsmith build jobs

The commit.txt file produced by each Cloudsmith build job is required to
run the corresponding publication job.  Therefore, the artifact lifetime
for the former must be long enough to prevent the file from expiring
before the publication job is run.  Set the lifetime of the artifacts
created by Cloudsmith build jobs to one month to ensure that the
publication jobs can access them.

(cherry picked from commit ce09f8d0f8fc9053ac4806f2231ee9625a9ed473)