Fix zsh history widget when sh_glob option is on (#4714)

Fixes #4712.

The CTRL-R history widget failed in zsh when [zsh's `sh_glob` option][0]
was on. This fixes that by disabling the option locally, like we disable
other options.

[0]: https://zsh.sourceforge.io/Doc/Release/Options.html#:~:text=SH%5FGLOB,ksh%2E

test/test_shell_integration.rb

@@ -920,6 +920,7 @@ class TestZsh < TestBase
   end
 
   test_perl_and_awk 'ctrl_r_multiline_index_collision' do
+    tmux.send_keys 'setopt sh_glob', :Enter
     # Leading number in multi-line history content is not confused with index
     prepare_ctrl_r_test
     tmux.send_keys "'line 1"