fix: put build section in right service

compose.yaml

@@ -17,11 +17,6 @@ services:
       interval: 10s
       timeout: 5s
       retries: 5
-    build:
-      context: .
-      args:
-        FLUXER_BUILD_CONFIG: |
-          { "domain": { "base_domain": "${FLUXER_BASE_DOMAIN}", "static_cdn_domain": "fluxerstatic.com", "public_scheme": "https", "public_port": 443 } }
     logging: *default-logging
 
   fluxer_server:
@@ -42,6 +37,11 @@ services:
     volumes:
       - ./config:/usr/src/app/config:ro
       - fluxer_data:/usr/src/app/data
+    build:
+      context: .
+      args:
+        FLUXER_BUILD_CONFIG: |
+          { "domain": { "base_domain": "${FLUXER_BASE_DOMAIN}", "static_cdn_domain": "fluxerstatic.com", "public_scheme": "https", "public_port": 443 } }
     healthcheck:
       test: ['CMD-SHELL', 'curl -fsS http://127.0.0.1:8080/_health || exit 1']
       interval: 15s