node/software-dsp: do not hide target node when hide-parent is false

The existence of props["hide-parent"] is truthy. Parse the boolean explicitly
to get the correct logic.

Signed-off-by: James Calligeros <jcalligeros99@gmail.com>

src/scripts/node/software-dsp.lua

@@ -6,6 +6,7 @@
 -- SPDX-License-Identifier: MIT
 
 log = Log.open_topic("s-node")
+cutils = require ("common-utils")
 
 config = {}
 config.rules = Conf.get_section_as_json("node.software-dsp.rules", Json.Array{})
@@ -37,7 +38,7 @@ SimpleEventHook {
           filter_nodes[node.properties["object.id"]] = LocalModule("libpipewire-module-filter-chain", props["filter-graph"], {})
         end
 
-        if props["hide-parent"] then
+        if cutils.parseBool (props["hide-parent"]) then
           log:debug("Setting permissions to '-' on " .. node.properties["node.name"] .. " for open clients")
           for client in clients_om:iterate{ type = "client" } do
             if not client["properties"]["wireplumber.daemon"] then