[vala] Sync NEWS from 0.52

[Rico Tzschichholz <ricotz src gnome org>]

commit 0fa66cafcbc17c127b486ba7b5483b1cf350f24c
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Fri Jun 4 11:36:51 2021 +0200

    Sync NEWS from 0.52

 NEWS | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
---
diff --git a/NEWS b/NEWS
index 7ed6cd6e7..5b7972707 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,23 @@
+Vala 0.52.4
+===========
+ * Various improvements and bug fixes:
+  - codegen:
+    + GArray, GByteArray and GPtrArray are reference counted
+    + Replace wrongly hard coded usage of G_OBJECT_GET_CLASS
+    + Don't add errornous cast for unknown type_symbol
+    + Mark entry point method implementation "_vala_main" as static
+    + Improve check for GLib.Source derived classes
+  - vala: Parameter following params-array parameter is not allowed
+  - doc: Update man page to include more information on profiles
+
+ * Bindings:
+  - glib-2.0: Add missing has_typedef attributes on SourceFuncs delegates
+  - gstreamer: Update from 1.19.0+ git master
+  - gtk+-3.0: Update to 3.24.29+f9fe28ce
+  - gtk4: Update to 4.3.0+24f0ae1d
+  - pango: Mark language parameter of AttrIterator.get_font() as out
+  - vapi: Update GIR-based bindings
+
 Vala 0.52.3
 ===========
  * Various improvements and bug fixes: