Updating next release version to be v3.0.4

Author: arobenko

CMakeLists.txt

@@ -32,7 +32,7 @@ option (MQTT5_BUILD_EMSCRIPTEN "Build and install project generated by the comms
 # COMMSDSL2SWIG_EXTRA_ARGS - Extra arguments to pass to "commsdsl2swig"
 # COMMSDSL2EMSCRIPTEN_EXTRA_ARGS - Extra arguments to pass to "commsdsl2emscripten"
 
-set (MQTT5_VERSION "3.0.3")
+set (MQTT5_VERSION "3.0.4")
 set (MQTT5_MIN_COMMSDSL_VERSION "7.1")
 
 if ("${CMAKE_CXX_STANDARD}" STREQUAL "")