[libmanette] meson: Bump meson minimum version requirement

[Adrien Plazas <aplazas src gnome org>]

commit 0870d86b4ce2d427e3285cfa0d2dc5047cb02e91
Author: vanadiae <vanadiae35 gmail com>
Date:   Sat Nov 21 13:45:18 2020 +0100

    meson: Bump meson minimum version requirement
    
    As it uses '/ with string arguments' and 'install arg in configure_file'

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index e2e40ad..cd00277 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('libmanette','c',
   version: '0.2.5',
-  meson_version: '>= 0.47.0',
+  meson_version: '>= 0.50.0',
 )
 
 gnome = import('gnome')