internal: add missing c includes (#11417)

hyprpm/src/core/PluginManager.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <cstdint>
 #include <memory>
 #include <string>
 #include <utility>

src/config/ConfigDescriptions.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <climits>
 #include "ConfigManager.hpp"
 
 inline static const std::vector<SConfigOptionDescription> CONFIG_OPTIONS = {

src/config/ConfigWatcher.cpp

@@ -1,4 +1,5 @@
 #include "ConfigWatcher.hpp"
+#include <linux/limits.h>
 #include <sys/inotify.h>
 #include "../debug/Log.hpp"
 #include <ranges>