Iterate dev version string

src/ZuluSCSI_config.h

@@ -28,7 +28,7 @@
 #include <ZuluSCSI_platform.h>
 
 // Use variables for version number
-#define FW_VER_NUM      "24.03.19"
+#define FW_VER_NUM      "24.03.21"
 #define FW_VER_SUFFIX   "dev"
 #define ZULU_FW_VERSION FW_VER_NUM "-" FW_VER_SUFFIX