[gtksourceview] Release GtkSourceView 5.4.0

[Christian Hergert <chergert src gnome org>]

commit 785a794811bc48505fa1c2c7b970ca2203cf759a
Author: Christian Hergert <chergert redhat com>
Date:   Fri Mar 18 16:46:13 2022 -0700

    Release GtkSourceView 5.4.0

 NEWS        | 17 +++++++++++++++++
 meson.build |  2 +-
 2 files changed, 18 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 394c2364..d0e37a34 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,20 @@
+News in 5.4.0, 2022-03-18
+-------------------------
+
+ * Build system fixes for Windows and macOS
+ * Style updates for Adwaita, Adwaita-dark, solarized-light, solarized-dark,
+   Classic, and a new Cobalt-light variant
+ * Language improvements for C, C++, GTK-DOC, and JSON
+ * Various header fixes
+ * Additional API to append/prepend search paths for language manager
+ * Allow loading language specifications via GResources
+ * A new "weight" attribute for style schemes which allows more control
+   than just bold="true"
+ * Various Vim emulation fixes
+ * GtkSourceView now requires GTK 4.6 for various CSS improvements
+ * Additional performance fixes to reduce overdraws by GPU
+ * Translation updates
+
 News in 5.3.2, 2022-01-09
 -------------------------
 
diff --git a/meson.build b/meson.build
index 11a539a0..0da40b9d 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gtksourceview', 'c',
-          version: '5.3.3',
+          version: '5.4.0',
           license: 'LGPL-2.1-or-later',
     meson_version: '>= 0.59.0',
   default_options: [ 'c_std=gnu99',