Update version number in the installation docs.

Author: igorborgest

docs/source/install.rst

@@ -59,7 +59,7 @@ Go to your Glue PySpark job and create a new *Job parameters* key/value:
 
 To install a specific version, set the value for above Job parameter as follows:
 
-* Value: ``awswrangler==1.9.3``
+* Value: ``awswrangler==1.9.6``
 
 `Official Glue PySpark Reference <https://docs.aws.amazon.com/glue/latest/dg/reduced-start-times-spark-etl-jobs.html#reduced-start-times-new-features>`_