Add abuse actions to account lock email text

https://gitlab.com/gitlab-org/gitlab/-/issues/339154

Changelog: changed

app/views/devise/mailer/unlock_instructions.html.haml

 #content
   = email_default_heading(_("Hello, %{name}!") % { name: @resource.name })
   %p
-    = _("Your GitLab account has been locked due to an excessive amount of unsuccessful sign in attempts. Your account will automatically unlock in %{duration} or you may click the link below to unlock now.") % { duration: distance_of_time_in_words(Devise.unlock_in) }
+    = _("Your GitLab account has been locked due to an excessive number of unsuccessful sign in attempts. You can wait for your account to automatically unlock in %{duration} or you can click the link below to unlock now.") % { duration: distance_of_time_in_words(Devise.unlock_in) }
   #cta
     = link_to(_('Unlock account'), unlock_url(@resource, unlock_token: @token))
+  %p
+    = _('If you did not initiate these sign-in attempts, please reach out to your administrator or enable two-factor authentication (2FA) on your account.')

app/views/devise/mailer/unlock_instructions.text.erb

 <%= _('Hello, %{name}!') % { name: @resource.name } %>
 
-<%= _("Your GitLab account has been locked due to an excessive amount of unsuccessful sign in attempts. Your account will automatically unlock in %{duration} or you may click the link below to unlock now.") % { duration: distance_of_time_in_words(Devise.unlock_in) } %>
+<%= _("Your GitLab account has been locked due to an excessive number of unsuccessful sign in attempts. You can wait for your account to automatically unlock in %{duration} or you can click the link below to unlock now.") % { duration: distance_of_time_in_words(Devise.unlock_in) } %>
 
 <%= unlock_url(@resource, unlock_token: @token) %>
+
+<%= _('If you did not initiate these sign-in attempts, please reach out to your administrator or enable two-factor authentication (2FA) on your account.') %>

locale/gitlab.pot

@@ -16907,6 +16907,9 @@ msgstr ""
 msgid "If you add %{codeStart}needs%{codeEnd} to jobs in your pipeline you'll be able to view the %{codeStart}needs%{codeEnd} relationships between jobs in this tab as a %{linkStart}Directed Acyclic Graph (DAG)%{linkEnd}."
 msgstr ""
 
+msgid "If you did not initiate these sign-in attempts, please reach out to your administrator or enable two-factor authentication (2FA) on your account."
+msgstr ""
+
 msgid "If you did not initiate this change, please contact your administrator immediately."
 msgstr ""
 
@@ -38738,7 +38741,7 @@ msgstr ""
 msgid "Your GPG keys (%{count})"
 msgstr ""
 
-msgid "Your GitLab account has been locked due to an excessive amount of unsuccessful sign in attempts. Your account will automatically unlock in %{duration} or you may click the link below to unlock now."
+msgid "Your GitLab account has been locked due to an excessive number of unsuccessful sign in attempts. You can wait for your account to automatically unlock in %{duration} or you can click the link below to unlock now."
 msgstr ""
 
 msgid "Your GitLab account request has been approved!"