chore(ci): push images via git.schweitz.net registry

The .internal registry domain is being retired; git.schweitz.net now
serves the registry without SSO on /v2/.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.gitea/workflows/build-api.yml

@@ -6,7 +6,7 @@ on:
       - 'api/v*'
 
 env:
-  IMAGE_NAME: git.schweitz.internal/jpmschweitzer/webber-api
+  IMAGE_NAME: git.schweitz.net/jpmschweitzer/webber-api
 
 jobs:
   release:
@@ -44,7 +44,7 @@ jobs:
       - name: Login to Gitea Registry
         uses: docker/login-action@v3
         with:
-          registry: git.schweitz.internal
+          registry: git.schweitz.net
           username: ${{ secrets.REGISTRY_USER }}
           password: ${{ secrets.REGISTRY_PASSWORD }}