Update Dockerfile to opensource/jupyter/jupyterlab:3.1.7

Dockerfile

@@ -3,7 +3,7 @@ ARG STAGE_IMAGE=ironbank/carnegie-mellon/python-ai/python38-ai
 ARG STAGE_TAG=3.8
 ARG BASE_REGISTRY=registry1.dso.mil
 ARG BASE_IMAGE=ironbank/opensource/jupyter/jupyterlab
-ARG BASE_TAG=3.0.14
+ARG BASE_TAG=3.1.7
 FROM ${STAGE_REGISTRY}/${STAGE_IMAGE}:${STAGE_TAG} AS multi-stage
 FROM ${BASE_REGISTRY}/${BASE_IMAGE}:${BASE_TAG}