Push databroker container images also to quay.io

[SebastianSchildt]

This will push databroker to quay.io.

Can only really be tested once it is merged, as we can only see then whether the secrets work

See here for background https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/issues/4712

And I did a test with a private quay repo to check the "pattern" used here should work:

https://github.com/SebastianSchildt/testquay https://github.com/SebastianSchildt/testquay/actions/runs/9386003500/job/25845517800

[SebastianSchildt]

After merge and successful containers would be expected at

docker pull quay.io/eclipse-kuksa/kuksa-databroker:main

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 49.40%. Comparing base (b456407) to head (b011194).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #37 +/- ## ======================================= Coverage 49.40% 49.40% ======================================= Files 31 31 Lines 11285 11285 ======================================= Hits 5575 5575 Misses 5710 5710 ```

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[erikbosch]

Seems to work, see https://quay.io/repository/eclipse-kuksa/kuksa-databroker?tab=tags&tag=latest

But do we want to mention it in documentation as well, and if so just in a single place and keep ghcr.io as the default in all examples?