Add metric plugins to bash completion for `plugin ls --filter capabil…

…ity`

This adds bash completion for moby/moby#32874.

Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 2caf425f02363a5894b5790dcde47a11808d23e1)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

contrib/completion/bash/docker

@@ -3771,7 +3771,7 @@ _docker_plugin_ls() {
 	local key=$(__docker_map_key_of_current_option '--filter|-f')
 	case "$key" in
 		capability)
-			COMPREPLY=( $( compgen -W "authz ipamdriver networkdriver volumedriver" -- "${cur##*=}" ) )
+			COMPREPLY=( $( compgen -W "authz ipamdriver logdriver metricscollector networkdriver volumedriver" -- "${cur##*=}" ) )
 			return
 			;;
 		enabled)