Update Dockerfile

update to 1.1.6 verison

ocserv/Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:3.13.5
 LABEL maintainer="Amin Vakil <[email protected]>"
 
-ENV VERSION 1.1.2
+ENV VERSION 1.1.6
 
 RUN apk add --no-cache bash