fix: use registry network alias for Orca Security scan

The Orca action runs inside a Docker container on the job's Docker
network, so 127.0.0.1:5000 resolves to the container itself rather
than the runner host. Use the 'registry' network alias instead, which
is reachable from any container on the same network.

Signed-off-by: Thomas Müller <1005065+DeepDiver1975@users.noreply.github.com>

Author: DeepDiver1975

.github/workflows/docker-build.yml

@@ -80,7 +80,7 @@ jobs:
         with:
           api_token: ${{ secrets.orca-security-api-token }}
           project_key: ${{ inputs.orca-security-project-key }}
-          image: 127.0.0.1:5000/image:temp
+          image: registry:5000/image:temp
           exit_code: "1"
 
       # Push the image on merge to master