patch 8.2.4342: CI will soon switch to other windows version

Problem:    CI will soon switch to other windows version.
Solution:   Use "windows-2019" instead of "windows-latest". (Ozaki Kiichi,
            closes #9740)
diff --git a/src/version.c b/src/version.c
index d78e2d1..d8640c7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4342,
+/**/
     4341,
 /**/
     4340,