innoextract: There are no include directories

- Silence hook error.

recipes/innoextract/all/conanfile.py

@@ -63,6 +63,7 @@ def package_id(self):
         self.info.requires.clear()
 
     def package_info(self):
+        self.cpp_info.includedirs = []
         self.cpp_info.libdirs = []
         bindir = os.path.join(self.package_folder, "bin")
         self.output.info("Appending PATH environment variable: {}"