[BUILD] Updated the TensorFlow version.

Author: eaplatanios

build.sbt

@@ -24,7 +24,7 @@ crossScalaVersions in ThisBuild := Seq("2.11.11", "2.12.6")
 
 organization in ThisBuild := "org.platanios"
 
-val tensorFlowVersion = "1.9.0-rc0"
+val tensorFlowVersion = "1.9.0-rc1"
 val circeVersion = "0.9.1" // Use for working with JSON.
 
 autoCompilerPlugins in ThisBuild := true