Bump ILRepack to latest: 2.0.16

OhmGraphite/OhmGraphite.csproj

@@ -27,7 +27,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="ILRepack" Version="2.0.15" />
+    <PackageReference Include="ILRepack" Version="2.0.16" />
     <PackageReference Include="NLog.Config" Version="4.5.6" />
     <PackageReference Include="Npgsql" Version="4.0.2" />
     <PackageReference Include="prometheus-net" Version="2.1.0" />