Align SOMEIP Feeder docker config

[erikbosch]

This intends to align what docker container that gets published, this PR use the same pattern as Databroker and Dbcfeeder

Fixes #115

Compare with

• https://github.com/eclipse/kuksa.val.feeders/blob/main/.github/workflows/kuksa_dbc_feeder.yml#L40
• https://github.com/eclipse/kuksa.val/blob/master/.github/workflows/kuksa_databroker_build.yml#L117