[gssdp] build: Update required meson version

[Jens Georg <jensgeorg src gnome org>]

commit cab0f6e6d8443e54462df1e4659a4b7dcd2c4e9e
Author: Jens Georg <mail jensge org>
Date:   Sat May 22 18:06:10 2021 +0200

    build: Update required meson version

 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/meson.build b/meson.build
index 72fdcb3..961de80 100644
--- a/meson.build
+++ b/meson.build
@@ -1,4 +1,4 @@
-project('gssdp', 'c', version: '1.2.4', meson_version : '>= 0.48.0')
+project('gssdp', 'c', version: '1.2.4', meson_version : '>= 0.54.0')
 gnome = import('gnome')
 pkg = import('pkgconfig')