jpictl: fix verbosity handling

Signed-off-by: Alejandro Mery <amery@jpi.io>

cmd/jpictl/main.go

@@ -37,5 +37,5 @@ func setVerbosity(_ *cobra.Command, _ []string) {
 	if desired > 6 {
 		desired = 6
 	}
-	log = log.WithLevel(slog.LogLevel(desired))
+	log = zerolog.New(nil, slog.LogLevel(desired))
 }