[mutter] tests/build: Sort sources list

[Marge Bot <marge-bot src gnome org>]

commit bd18af1a0da414e4e0946cadae8f54f679edf45a
Author: Jonas Ådahl <jadahl gmail com>
Date:   Fri Jan 28 08:22:16 2022 +0100

    tests/build: Sort sources list
    
    Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2262>

 src/tests/meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/tests/meson.build b/src/tests/meson.build
index 67a4bd5ad0..36fc818b11 100644
--- a/src/tests/meson.build
+++ b/src/tests/meson.build
@@ -8,10 +8,10 @@ mutter_test_sources = [
   'meta-monitor-manager-test.h',
   'meta-sensors-proxy-mock.c',
   'meta-sensors-proxy-mock.h',
-  'monitor-test-utils.c',
-  'monitor-test-utils.h',
   'meta-test-utils.c',
   'meta-test-utils.h',
+  'monitor-test-utils.c',
+  'monitor-test-utils.h',
 ]
 
 libmutter_test_name = 'mutter-test-' + libmutter_api_version