Build distribution docker images immediately after tarball builds

[gaiksaya]

Is your feature request related to a problem? Please describe

Check the most recent run for 3.0.0 here: https://build.ci.opensearch.org/blue/organizations/jenkins/distribution-build-opensearch/detail/distribution-build-opensearch/10494/pipeline

The docker images are build at the end of the pipeline when all the dist/arch/platform builds are complete. Often times, we have seen windows failing mainly due to shell glitch or other operating system issues. Failure in any step before docker won't trigger a docker build as it is sequential at this point.

Describe the solution you'd like

In order to build the docker images for OpenSearch and OpenSearch-Dashboards, we only need tarball linux distribution for x64 and arm64 to be ready. Hence the docker stage can be moved from sequential run at the end of all builds/assemble to parallel stage once tarball x64 and arm64 builds are complete.

Describe alternatives you've considered

Keep what we have. It is not a blocker but definitely lacks the consistent builds due to other distribution failures.

Additional context

No response