patch 8.2.5074: spell test fails on MS-Windows

Problem:    Spell test fails on MS-Windows.
Solution:   Do not change 'encoding'
diff --git a/src/version.c b/src/version.c
index 092d563..a2a2d75 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5074,
+/**/
     5073,
 /**/
     5072,