patch 8.2.4887: channel log does not show invoking a timer callback

Problem:    Channel log does not show invoking a timer callback.
Solution:   Add a ch_log() call.
diff --git a/src/version.c b/src/version.c
index 6c4aa52..6adfeaa 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4887,
+/**/
     4886,
 /**/
     4885,