patch 8.2.0248: MS-Windows: dealing with deprecation is too complicated

Problem:    MS-Windows: dealing with deprecation is too complicated.
Solution:   Use io.h directly. Move _CRT_SECURE_NO_DEPRECATE to the build
            file. Suppress C4091 warning by setting "_WIN32_WINNT". (Ken
            Takata, closes #5626)
diff --git a/src/version.c b/src/version.c
index 1b22d6f..ba79618 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    248,
+/**/
     247,
 /**/
     246,