Update Example plugins after Version->TransportVersion refactor (elastic#93293)

Plugins which indirectly implement VersionedNamedWriteable should return
TransportVersion

relates elastic#93242

Author: pgomulka

plugins/examples/custom-suggester/src/main/java/org/elasticsearch/example/customsuggester/CustomSuggestionBuilder.java

@@ -8,17 +8,17 @@
 
 package org.elasticsearch.example.customsuggester;
 
-import org.elasticsearch.Version;
-import org.elasticsearch.xcontent.ParseField;
+import org.elasticsearch.TransportVersion;
 import org.elasticsearch.common.ParsingException;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
 import org.elasticsearch.common.lucene.BytesRefs;
-import org.elasticsearch.xcontent.XContentBuilder;
-import org.elasticsearch.xcontent.XContentParser;
 import org.elasticsearch.index.query.SearchExecutionContext;
 import org.elasticsearch.search.suggest.SuggestionBuilder;
 import org.elasticsearch.search.suggest.SuggestionSearchContext;
+import org.elasticsearch.xcontent.ParseField;
+import org.elasticsearch.xcontent.XContentBuilder;
+import org.elasticsearch.xcontent.XContentParser;
 
 import java.io.IOException;
 import java.util.HashMap;
@@ -131,7 +131,7 @@ public SuggestionSearchContext.SuggestionContext build(SearchExecutionContext co
     }
 
     @Override
-    public Version getMinimalSupportedVersion() {
-        return Version.V_EMPTY;
+    public TransportVersion getMinimalSupportedVersion() {
+        return TransportVersion.ZERO;
     }
 }

plugins/examples/rescore/src/main/java/org/elasticsearch/example/rescore/ExampleRescoreBuilder.java

@@ -13,24 +13,24 @@
 import org.apache.lucene.search.IndexSearcher;
 import org.apache.lucene.search.ScoreDoc;
 import org.apache.lucene.search.TopDocs;
-import org.elasticsearch.core.Nullable;
-import org.elasticsearch.xcontent.ParseField;
+import org.elasticsearch.TransportVersion;
 import org.elasticsearch.common.io.stream.StreamInput;
 import org.elasticsearch.common.io.stream.StreamOutput;
-import org.elasticsearch.xcontent.ConstructingObjectParser;
-import org.elasticsearch.xcontent.XContentBuilder;
-import org.elasticsearch.xcontent.XContentParser;
+import org.elasticsearch.core.Nullable;
 import org.elasticsearch.index.fielddata.IndexFieldData;
 import org.elasticsearch.index.fielddata.LeafFieldData;
 import org.elasticsearch.index.fielddata.LeafNumericFieldData;
 import org.elasticsearch.index.fielddata.SortedNumericDoubleValues;
+import org.elasticsearch.index.mapper.MappedFieldType;
 import org.elasticsearch.index.query.QueryRewriteContext;
 import org.elasticsearch.index.query.SearchExecutionContext;
-import org.elasticsearch.index.mapper.MappedFieldType;
 import org.elasticsearch.search.rescore.RescoreContext;
 import org.elasticsearch.search.rescore.Rescorer;
 import org.elasticsearch.search.rescore.RescorerBuilder;
-import org.elasticsearch.Version;
+import org.elasticsearch.xcontent.ConstructingObjectParser;
+import org.elasticsearch.xcontent.ParseField;
+import org.elasticsearch.xcontent.XContentBuilder;
+import org.elasticsearch.xcontent.XContentParser;
 
 import java.io.IOException;
 import java.util.Arrays;
@@ -217,7 +217,7 @@ public Explanation explain(int topLevelDocId, IndexSearcher searcher, RescoreCon
     }
 
     @Override
-    public Version getMinimalSupportedVersion() {
-        return Version.V_EMPTY;
+    public TransportVersion getMinimalSupportedVersion() {
+        return TransportVersion.ZERO;
     }
 }