Bump version in release branch

Author: narendasan

cpp/include/torch_tensorrt/macros.h

@@ -24,7 +24,7 @@
 #define STR(x) XSTR(x)
 
 #define TORCH_TENSORRT_MAJOR_VERSION 1
-#define TORCH_TENSORRT_MINOR_VERSION 3
+#define TORCH_TENSORRT_MINOR_VERSION 4
 #define TORCH_TENSORRT_PATCH_VERSION 0
 #define TORCH_TENSORRT_VERSION      \
   STR(TORCH_TENSORRT_MAJOR_VERSION) \