AWS: Allow using "snapshot_accouts" from StArMap

[JAVGan]

This commit updates the push command to include the snapshot_accounts property from StArMap (whenever avaialble) to be used in the _push_upload method.

Refers to RHELDST-29388

[JAVGan]

@lslebodn @jajreidy PTAL.

It should be a one line change, but I believe there's a new property for AWS on pushsource named "opener" which had to be included in the logs to pass the CI, alongside the fix from the new black version

[lslebodn]

@JAVGan I though we need tit for community workflow and not for stratosphere
and looks like we already have it in the community workflow

• pubtools-marketplacesvm/src/pubtools/_marketplacesvm/tasks/community_push/command.py

  Line 501 in 1009389

  extra_args = ["accounts", "sharing_accounts", "snapshot_accounts"]

• pubtools-marketplacesvm/src/pubtools/_marketplacesvm/tasks/community_push/command.py

  Line 388 in 1009389

  snapshot_accounts=snapshot_accounts,

• pubtools-marketplacesvm/src/pubtools/_marketplacesvm/tasks/community_push/command.py

  Line 285 in 1009389

  set_accounts("snapshot_accounts", result)

But related slack discussion is still in my TODO list.

[JAVGan]

Great! I thought we would need it for the stratosphere workflow as well... Do you still think it makes sense to include it on such workflow? Or is it better to close the PR?