[aisleriot] build: Fix build with bash in unusual location

[Christian Persch <chpe src gnome org>]

commit a937d39c35e87a8a5f26660643198f5d930698ae
Author: Christian Persch <chpe src gnome org>
Date:   Thu Nov 12 16:47:56 2020 +0100

    build: Fix build with bash in unusual location
    
    Fixes: https://gitlab.gnome.org/GNOME/aisleriot/-/issues/46

 cards/meson_svgz.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/cards/meson_svgz.sh b/cards/meson_svgz.sh
index 20f0de96e..5a0bf0127 100755
--- a/cards/meson_svgz.sh
+++ b/cards/meson_svgz.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/bash
+#!/usr/bin/env bash
 # Copyright © 2019 Christian Persch
 #
 # This programme is free software; you can redistribute it and/or modify it