Update Dockerfile

Dockerfile

@@ -1,6 +1,6 @@
 # read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker
 # you will also find guides on how best to write your Dockerfile
-FROM ubuntu:18.04
+FROM ubuntu:22.04
 
 RUN apt-get update
 
@@ -41,8 +41,8 @@ USER root
 RUN mkdir -p /var/run/vpnc
 RUN chmod -R 777 /var/run/vpnc
 
-RUN mkdir -p /dev/net
-RUN chmod -R 777 /dev/net
+#RUN mkdir -p /dev/net
+#RUN chmod -R 777 /dev/net
 
 COPY aberconnect.sh /openconnect
 RUN chmod +x aberconnect.sh