disable warning CA1848 'use the LoggerMessage delegates'

Author: smdn

src/Smdn.Reflection.ReverseGenerating.ListApi.Core/Smdn.Reflection.ReverseGenerating.ListApi/AssemblyLoader.netcore.cs

@@ -1,5 +1,7 @@
 // SPDX-FileCopyrightText: 2021 smdn <smdn@smdn.jp>
 // SPDX-License-Identifier: MIT
+#pragma warning disable CA1848
+
 #if NETCOREAPP3_1_OR_GREATER
 using System;
 using System.IO;