Bump Jupyterlab version to 4.1.8

cesnet-central/deployments/fullhub.yaml

@@ -62,7 +62,7 @@ singleuser:
   defaultUrl: "/lab"
   image:
     name: valtri/single-user
-    tag: "jupyter-4d"
+    tag: "jupyter-4e"
   profileList:
     - display_name: Default EGI environment - 6 GB RAM / 2 core
       description: >

demo/deployments/hub.yaml

@@ -69,7 +69,7 @@ singleuser:
   defaultUrl: "/lab"
   image:
     name: valtri/single-user
-    tag: "jupyter-4d"
+    tag: "jupyter-4e"
   profileList:
     - display_name: Small Environment - 2 vCPU / 4 GB RAM
       description: >