[GH-5748] Upgrade H2O to 3.46.0.6 (#5749)

Author: valenad1

gradle.properties

@@ -5,7 +5,7 @@ h2oMajorVersion=3.46.0
 # Name of H2O major version
 h2oMajorName=3.46.0
 # H2O Build version, defined here to be overriden by -P option
-h2oBuild=5
+h2oBuild=6
 # Version of Mojo Pipeline library
 mojoPipelineVersion=2.8.1
 # Defines whether to run tests with Driverless AI mojo pipelines