patch 8.2.2237: CI on Mac fails in sed command

Problem:    CI on Mac fails in sed command.
Solution:   Set LC_ALL to "C". (Ozaki Kiichi, closes #7565)
diff --git a/src/version.c b/src/version.c
index 401bce9..89e6afc 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2237,
+/**/
     2236,
 /**/
     2235,