Merge pull request #480 from catatsuy/renovate/nginx-1.x

Update nginx Docker tag to v1.26

webapp/docker-compose.yml

@@ -1,7 +1,7 @@
 name: private-isu
 services:
   nginx:
-    image: nginx:1.24
+    image: nginx:1.26
     volumes:
       - ./etc/nginx/conf.d:/etc/nginx/conf.d
       - ./public:/public