Follow up to #1512: silence warning about the use of an experimental feature (before Perl v5.36)

Signed-off-by: Michael Herger <michael@herger.net>

Author: michaelherger

Slim/Plugin/FullTextSearch/Plugin.pm

@@ -2,6 +2,7 @@ package Slim::Plugin::FullTextSearch::Plugin;
 
 use strict;
 use Tie::Cache::LRU::Expires;
+no warnings 'experimental::regex_sets';
 
 use Slim::Utils::Log;
 use Slim::Utils::Prefs;