Update src/Middleware/OutputCaching/src/DefaultOutputCachePolicyProvi…

…der.cs

Co-authored-by: Stephen Halter <halter73@gmail.com>

src/Middleware/OutputCaching/src/DefaultOutputCachePolicyProvider.cs

@@ -6,7 +6,7 @@
 namespace Microsoft.AspNetCore.OutputCaching;
 
 /// <inheritdoc />
-public class DefaultOutputCachePolicyProvider : IOutputCachePolicyProvider
+internal class DefaultOutputCachePolicyProvider : IOutputCachePolicyProvider
 {
     private readonly OutputCacheOptions _options;