[3rdparty] Bump symfony/event-dispatcher

diff --git a/3rdparty b/3rdparty
index 6ed0fba7d78ced45ea39bef5881597fcd47c89f0..38b9a44072fb8667fa9e73330a70ea012b6772e8 160000 (submodule)
--- a/3rdparty
+++ b/3rdparty
@@ -1 +1 @@
-Subproject commit 6ed0fba7d78ced45ea39bef5881597fcd47c89f0
+Subproject commit 38b9a44072fb8667fa9e73330a70ea012b6772e8