Updated image release version env var.

Author: vladd-bit

env/jupyter.env

@@ -9,7 +9,7 @@
 #   jupyter-singleuser-gpu AMD64: ogstacksystems/jupyter-singleuser-gput:latest
 #   last stable release build (AMD64 only): "cogstacksystems/jupyter-singleuser:1.2.7"
 # The CogStack images are huge and will take a bit to download
-JUPYTER_HUB_IMAGE_RELEASE_VERSION=2.1.0
+JUPYTER_HUB_IMAGE_RELEASE_VERSION=2.2.0
 JUPYTER_HUB_SINGLEUSER_DOCKER_NOTEBOOK_IMAGE="cogstacksystems/jupyter-singleuser:${JUPYTER_HUB_IMAGE_RELEASE_VERSION:-latest}"
 
 # This needs to be set to true if you intend to use the GPU image