Update git submodules

* Update org.eclipse.mylyn from branch 'm_3_25_x'
  to 25af067679cc022044c46b42408a74baac1f4f94
  - 563071: release Mylyn 3.25.1
    
    Change-Id: I3d22b15c2c9bcf605f46deb814dcca9f8a12b34e
    Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=563071
    Signed-off-by: Frank Becker <eclipse@frank-becker.de>
diff --git a/org.eclipse.mylyn b/org.eclipse.mylyn
index 95656e8..25af067 160000
--- a/org.eclipse.mylyn
+++ b/org.eclipse.mylyn
@@ -1 +1 @@
-Subproject commit 95656e80aab5c2f57058e97f1a5a985bac8edebf
+Subproject commit 25af067679cc022044c46b42408a74baac1f4f94