Update CHM documentation. Use correct date of 1.26.12 in header.

Author: idrassi

doc/chm/VeraCrypt User Guide.chm

@@ -73,9 +73,9 @@ extern unsigned short _rotl16(unsigned short value, unsigned char shift);
 #define VERSION_NUM						0x0126
 
 // Release date
-#define TC_STR_RELEASE_DATE			L"June 23, 2024"
+#define TC_STR_RELEASE_DATE			L"July 12, 2024"
 #define TC_RELEASE_DATE_YEAR			2024
-#define TC_RELEASE_DATE_MONTH			 6
+#define TC_RELEASE_DATE_MONTH			 7
 
 #define BYTES_PER_KB                    1024LL
 #define BYTES_PER_MB                    1048576LL