Updates SSH key title after pasting key

Previously it was listening for focusout, it now listens for blur &
paste events

Closes #28436

app/assets/javascripts/profile/profile.js.es6

@@ -84,13 +84,14 @@
   }
 
   $(function() {
-    $(document).on('focusout.ssh_key', '#key_key', function() {
+    $(document).on('input.ssh_key', '#key_key', function() {
       const $title = $('#key_title');
       const comment = $(this).val().match(/^\S+ \S+ (.+)\n?$/);
-      if (comment && comment.length > 1 && $title.val() === '') {
+
+      // Extract the SSH Key title from its comment
+      if (comment && comment.length > 1) {
         return $title.val(comment[1]).change();
       }
-    // Extract the SSH Key title from its comment
     });
     if (global.utils.getPagePath() === 'profiles') {
       return new Profile();

changelogs/unreleased/ssh-key-paste.yml

+---
+title: SSH key field updates title after pasting key
+merge_request:
+author:

spec/features/profiles/keys_spec.rb

@@ -15,7 +15,7 @@ feature 'Profile > SSH Keys', feature: true do
     scenario 'auto-populates the title', js: true do
       fill_in('Key', with: attributes_for(:key).fetch(:key))
 
-      expect(find_field('Title').value).to eq 'dummy@gitlab.com'
+      expect(page).to have_field("Title", with: "dummy@gitlab.com")
     end
 
     scenario 'saves the new key' do