[gobject-introspection] version bump

[Christoph Reiter <creiter src gnome org>]

commit 76067c85e199c0ce6b490301b89a4e17a74b3b51
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Sat Aug 18 00:33:19 2018 +0200

    version bump

 configure.ac | 2 +-
 meson.build  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 40dadcdb..c726a03d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@
 dnl the gi version number
 m4_define(gi_major_version, 1)
 m4_define(gi_minor_version, 57)
-m4_define(gi_micro_version, 3)
+m4_define(gi_micro_version, 4)
 m4_define(gi_version, gi_major_version.gi_minor_version.gi_micro_version)
 
 AC_PREREQ([2.63])
diff --git a/meson.build b/meson.build
index 752ab5f4..1d03cb4e 100644
--- a/meson.build
+++ b/meson.build
@@ -1,5 +1,5 @@
 project('gobject-introspection', 'c',
-  version: '1.57.3',
+  version: '1.57.4',
   meson_version: '>= 0.46.0',
   default_options: [
     'warning_level=1',