fix Delta UniversalFormat bug so it supports overwrite table (#2852)

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## Description

fix Delta UniversalFormat bug so it supports overwrite table. It should
use a full metadata for later detection logic.



## How was this patch tested?

manual test with dataframe overwrite.

Author: lzlfred

spark/src/main/scala/org/apache/spark/sql/delta/UniversalFormat.scala

@@ -208,7 +208,7 @@ object UniversalFormat extends DeltaLogging {
   def enforceDependenciesInConfiguration(
       configuration: Map[String, String],
       snapshot: Snapshot): Map[String, String] = {
-    var metadata = Metadata(configuration = configuration)
+    var metadata = snapshot.metadata.copy(configuration = configuration)
 
     // Check UniversalFormat related property dependencies
     val (_, universalMetadata) = UniversalFormat.enforceInvariantsAndDependencies(