Merge branch 're-deploy-button' into 'master'

Use Re-deploy button on Deployments page

## What does this MR do?
Change `Retry` to `Re-deploy` which is more accurate.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

## What are the relevant issue numbers?
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/18885

## Screenshots (if relevant)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5374

CHANGELOG

@@ -255,6 +255,7 @@ v 8.9.1
   - Remove width restriction for logo on sign-in page. !4888
   - Bump gitlab_git to 10.2.3 to fix false truncated warnings with ISO-8559 files. !4884
   - Apply selected value as label. !4886
+  - Change Retry to Re-deploy on Deployments page
   - Fix temp file being deleted after the request while importing a GitLab project. !4894
   - Fix pagination when sorting by columns with lots of ties (like priority)
   - Implement Subresource Integrity for CSS and JavaScript assets. This prevents malicious assets from loading in the case of a CDN compromise.

app/views/projects/deployments/_actions.haml

@@ -17,6 +17,6 @@
     - if local_assigns.fetch(:allow_rollback, false)
       = link_to [:retry, @project.namespace.becomes(Namespace), @project, deployment.deployable], method: :post, class: 'btn btn-build' do
         - if deployment.last?
-          Retry
+          Re-deploy
         - else
           Rollback

spec/features/environments_spec.rb

@@ -92,8 +92,8 @@ feature 'Environments', feature: true do
         expect(page).to have_link(deployment.short_sha)
       end
 
-      scenario 'does not show a retry button for deployment without build' do
-        expect(page).not_to have_link('Retry')
+      scenario 'does not show a re-deploy button for deployment without build' do
+        expect(page).not_to have_link('Re-deploy')
       end
 
       context 'with build' do
@@ -105,8 +105,8 @@ feature 'Environments', feature: true do
           expect(page).to have_link("#{build.name} (##{build.id})")
         end
 
-        scenario 'does show retry button' do
-          expect(page).to have_link('Retry')
+        scenario 'does show re-deploy button' do
+          expect(page).to have_link('Re-deploy')
         end
 
         context 'with manual action' do