Update src/ImageSharp.Web/DependencyInjection/ServiceCollectionExtensions.cs

Co-authored-by: Ronald Barendse <ronald@barend.se>

Author: JimBobSquarePants

src/ImageSharp.Web/DependencyInjection/ServiceCollectionExtensions.cs

@@ -64,7 +64,7 @@ private static void AddDefaultServices(
 
             builder.SetCache<PhysicalFileSystemCache>();
 
-            builder.SetCacheKey<UriRelativeCacheKey>();
+            builder.SetCacheKey<UriRelativeCaseInsensitiveCacheKey>();
 
             builder.SetCacheHash<CacheHash>();