update ddns env section for yml

lxc1/p1-ingress/ddns.yml

@@ -4,12 +4,13 @@ services:
     container_name: ddns-updater
     restart: unless-stopped
     environment:
-      - TZ=America/Edmonton
+      TZ: America/Edmonton
-      - PERIOD=5m
+      PERIOD: 5m
-      - PUBLICIP_FETCHERS=http
+      PUBLICIP_FETCHERS: http
-      - PUBLICIP_HTTP_PROVIDERS=all
+      PUBLICIP_HTTP_PROVIDERS: all
-      # Wildcard Config
+      # Using the pipe (|) allows multi-line JSON safely
-      - CONFIG={
+      CONFIG: |
+        {
           "settings": [
             {
               "provider": "desec",