adjusted minimal supported version

x-pack/plugin/enrich/src/main/java/org/elasticsearch/xpack/enrich/EnrichMetadata.java

@@ -81,8 +81,7 @@ public final class EnrichMetadata extends AbstractNamedDiffable<MetaData.Custom>
 
     @Override
     public Version getMinimalSupportedVersion() {
-        // NO RELEASE: change when merging enrich & enrich-7.x into master and 7.x respectively:
-        return Version.V_7_1_0;
+        return Version.V_7_5_0;
     }
 
     @Override