Fix nginx: remove must-revalidate from gzip_proxied to prevent startup error

Author: DaniloGouvea

.docker/nginx.conf

@@ -8,7 +8,7 @@ server {
     gzip on;
     gzip_vary on;
     gzip_min_length 1024;
-    gzip_proxied expired no-cache no-store private must-revalidate auth;
+    gzip_proxied expired no-cache no-store private auth;
     gzip_types
         text/plain
         text/css
@@ -48,4 +48,4 @@ server {
         return 200 "healthy\n";
         add_header Content-Type text/plain;
     }
-}
+}