test_settracefunc.rb: Increase a timeout

https://github.com/ruby/ruby/actions/runs/17413734881/job/49436975287

Author: k0kubun

test/ruby/test_settracefunc.rb

@@ -2724,7 +2724,7 @@ def obj.example
   end
 
   def test_disable_local_tracepoint_in_trace
-    assert_normal_exit <<-EOS
+    assert_normal_exit(<<-EOS, timeout: 60)
     def foo
       trace = TracePoint.new(:b_return){|tp|
         tp.disable