Request to Host Glue Spark UI Images on DockerHub

Currently I need to write a bunch of code to automatically download and build this docker image because I can't pull it directly from DockerHub.

```shell
echo "glue/sparkui image not found, building image..."
TEMPD=$(mktemp -d -t "glue-sparkui-XXXX")
if [ ! -e "$TEMPD" ]; then
echo >&2 "Failed to create temp directory"
exit 1
fi
cd "$TEMPD"
git clone https://github.com/aws-samples/aws-glue-samples.git
(cd aws-glue-samples/utilities/Spark_UI/glue-1_0-2_0 && docker build -t glue/sparkui:2.0 .)
(cd aws-glue-samples/utilities/Spark_UI/glue-3_0 && docker build -t glue/sparkui:3.0 .)
(cd aws-glue-samples/utilities/Spark_UI/glue-4_0 && docker build -t glue/sparkui:4.0 .)
cd -
rm -rf "$TEMPD"
```

Can these docker images be published directly to DockerHub so I can simply `docker pull` them and start using immediately?

I see that the `aws-glue-libs` are already hosted there: https://hub.docker.com/r/amazon/aws-glue-libs

Would be great to host the Spark UI as well!

Start with the Docker build directories utilities/Spark_UI/glue-1_0-2_0, glue-3_0, and glue-4_0, and review the existing build commands in the issue. Determine how these images could be published to DockerHub alongside the existing amazon/aws-glue-libs images. Done means users can pull the Spark UI images directly instead of cloning the repository and building them.

Written by the indexing model from the issue text.