Update CMakeLists.txt

Author: tmathern

CMakeLists.txt

@@ -17,7 +17,7 @@ cmake_minimum_required(VERSION 3.27)
 project(c2pa-c VERSION 0.18.1)
 
 # Set the version of the c2pa_rs library used
-set(C2PA_VERSION "0.78.3")
+set(C2PA_VERSION "0.78.4")
 
 set(CMAKE_POLICY_DEFAULT_CMP0135 NEW)
 set(CMAKE_C_STANDARD 17)