Run git Pull in wb -u.

Update the rcfiles repo as part of the workbench update. Mainly for ns4
that I sometimes don't use for days. So I can run wbr -u and it would
update the image, rcfiles and run the git hook and I would have an
updated environment.

Documents/bin/wb

@@ -92,13 +92,13 @@ update() {
     then
         not_from_toolbox
     fi
-    if is_latest
+    if ! is_latest
     then
-        exit 0
-    fi
         kill_server
         podman image prune --filter 'label=com.github.containers.toolbox=true' --force >/dev/null
         yes | toolbox create --image "$IMAGE"
+    fi
+    toolbox run --container "$CONTAINER" -- git -C "$HOME" Pull
 }
 
 dry_update() {