[surveys] Upgrade to Limesurvey 5

[Andrea Veri <averi src gnome org>]

commit 490786186b34038c73c0f105afed3d03d301308b
Author: Andrea Veri <averi redhat com>
Date:   Wed Apr 20 16:24:24 2022 +0200

    Upgrade to Limesurvey 5

 Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/Dockerfile b/Dockerfile
index d7d53c2..19886bd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM martialblog/limesurvey:4-fpm
+FROM martialblog/limesurvey:5-fpm
 
 RUN apt-get update && apt-get install -y nginx-light && \
     ln -sf /dev/stdout /var/log/nginx/access.log && \