patch 8.2.3103: swap test may fail on some systems

Problem:    Swap test may fail on some systems when jobs take longer to exit.
Solution:   Use different file names.
diff --git a/src/version.c b/src/version.c
index 6192832..a9c2958 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3103,
+/**/
     3102,
 /**/
     3101,