fix: route CRM registry pushes via NAS LAN

.gitea/workflows/docker-build.yml

@@ -6,6 +6,7 @@ on:
 
 env:
   REGISTRY: git.mischlabs.de
+  REGISTRY_LAN_IP: 192.168.178.88
   REGISTRY_USER: MrDiderot
   REGISTRY_IMAGE: git.mischlabs.de/mrdiderot/crm
 
@@ -44,6 +45,10 @@ jobs:
       - name: Log in to Gitea Package Registry
         shell: sh
         run: |
+          if [ -n "${{ env.REGISTRY_LAN_IP }}" ]; then
+            echo "${{ env.REGISTRY_LAN_IP }} ${{ env.REGISTRY }}" >> /etc/hosts
+          fi
+
           if [ -z "${{ secrets.REGISTRY_TOKEN }}" ]; then
             echo "Missing REGISTRY_TOKEN secret."
             echo "Create a Gitea personal access token for MrDiderot with package Read and Write permission."