Fix wrong externalization in HAML

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

app/views/profiles/show.html.haml

@@ -84,7 +84,7 @@
     .col-lg-8
       -# TODO: might need an entry in user/profile.md to describe some of these settings
       -# https://gitlab.com/gitlab-org/gitlab-foss/issues/60070
-      %h5= ("Time zone")
+      %h5= _("Time zone")
       = dropdown_tag(_("Select a timezone"), options: { toggle_class: 'gl-button btn js-timezone-dropdown input-lg', title: _("Select a timezone"), filter: true, placeholder: s_("OfSearchInADropdown|Filter"), data: { data: timezone_data } } )
       %input.hidden{ :type => 'hidden', :id => 'user_timezone', :name => 'user[timezone]', value: @user.timezone }
     .col-lg-12

locale/gitlab.pot

@@ -31959,6 +31959,9 @@ msgstr ""
 msgid "Time until first merge request"
 msgstr ""
 
+msgid "Time zone"
+msgstr ""
+
 msgid "TimeTrackingEstimated|Est"
 msgstr ""