fix: add some #pragma onces

Author: shiftinv

src/logging.hpp

@@ -1,3 +1,5 @@
+#pragma once
+
 #include <dave/logger.h>
 #include <nanobind/nanobind.h>
 #include <nanobind/stl/string.h>

src/signature_key_pair.hpp

@@ -1,3 +1,5 @@
+#pragma once
+
 #include <dave/mls/parameters.h>
 #include <nanobind/nanobind.h>
 

src/utils.hpp

@@ -1,3 +1,5 @@
+#pragma once
+
 #include <nanobind/nanobind.h>
 
 #include <vector>