FoD: Update logic for setting owner field values when none are supplied

[kadraman]

Enhancement Request

With the FoD 25.1 release the ownerId is now an optional parameter for the following endpoints.

• POST /api/v3/applications
• PUT /api/v3/releases/{released}

If a value is not provided, the value is set to the Security Lead , alphabetically sorted by last name.
With this new logic we can updated fod app create for example to make owner field optional and thus allow the github-action to not require this field as well.

[kadraman]

Implemented as part of #686.