✨ Add proxypass to caddyfile on devenv (#7985)

docker/devenv/files/Caddyfile

@@ -10,3 +10,7 @@ localhost:3449 {
 http://localhost:3450 {
    reverse_proxy localhost:4449
 }
+
+http://penpot-devenv-main:3450 {
+    reverse_proxy localhost:4449
+}