patch 9.0.1903: CI fails because snd-dummy modules missing

Problem:  Github Actions fails because snd-dummy modules missing
          in current runner images
Solution: ignore modprobe error

related: actions/runner-images#8295

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 677c35c..264fc7e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1903,
+/**/
     1902,
 /**/
     1901,