patch 8.1.2352: CI doesn't cover FreeBSD

Problem:    CI doesn't cover FreeBSD.
Solution:   Configure Cirrus-CI. (Christian Brabandt, closes #5273)
diff --git a/src/version.c b/src/version.c
index ce3b731..4c7c380 100644
--- a/src/version.c
+++ b/src/version.c
@@ -738,6 +738,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2352,
+/**/
     2351,
 /**/
     2350,