Bump registry version

Author: bdovaz

src/UnityNuGet/RegistryCache.cs

@@ -33,7 +33,7 @@ public class RegistryCache
         public static readonly bool IsRunningOnAzure = !string.IsNullOrEmpty(Environment.GetEnvironmentVariable("WEBSITE_SITE_NAME"));
 
         // Change this version number if the content of the packages are changed by an update of this class
-        private const string CurrentRegistryVersion = "1.6.0";
+        private const string CurrentRegistryVersion = "1.7.0";
 
         private static readonly Encoding Utf8EncodingNoBom = new UTF8Encoding(false, false);
         private readonly string _rootPersistentFolder;