Bump version number to 1.5.0

Author: cschreib

CHANGELOG

@@ -1,4 +1,4 @@
-v1.x.0 (25/08/2023)
+v1.5.0 (06/12/2023)
 ======
 
 Features:

src/fast++.cpp

@@ -5,7 +5,7 @@
 #define FASTPP_GIT_HASH ""
 #endif
 
-const char* fastpp_version = "1.4.0";
+const char* fastpp_version = "1.5.0";
 const char* fastpp_git_hash = FASTPP_GIT_HASH;
 
 const constexpr uint_t grid_id::z;