[Core] Fix a mismatched dealloc in Render.cpp in the OGL backend. Should be delete[]

Source/Core/VideoBackends/OGL/Src/Render.cpp

@@ -1818,7 +1818,7 @@ bool Renderer::SaveScreenshot(const std::string &filename, const TargetRectangle
 	// Show failure message
 	if (GL_REPORT_ERROR() != GL_NO_ERROR)
 	{
-		free(data);
+		delete[] data;
 		OSD::AddMessage("Error capturing or saving screenshot.", 2000);
 		return false;
 	}