LibGfx: Add initializer for ICCProfile::m_creation_timestamp

Author: https://github.com/nico
Commit: 1a907aa305
Pull-request: https://github.com/SerenityOS/serenity/pull/16903
Reviewed-by: https://github.com/linusg

Userland/Libraries/LibGfx/ICCProfile.h

@@ -244,7 +244,7 @@ private:
     DeviceClass m_device_class;
     ColorSpace m_data_color_space;
     ColorSpace m_connection_space;
-    time_t m_creation_timestamp;
+    time_t m_creation_timestamp { 0 };
     PrimaryPlatform m_primary_platform;
     Flags m_flags;
     Optional<DeviceManufacturer> m_device_manufacturer;