[CI] Removes elasticsearch-transport from GitHub Actions

Author: picandocodigo

.github/workflows/main.yml

@@ -40,7 +40,5 @@ jobs:
       run: cd elasticsearch && bundle exec rake test:all
     - name: elasticsearch-api
       run: cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit
-    - name: elasticsearch-transport
-      run: cd elasticsearch-transport && bundle exec rake test:all
     - name: elasticsearch-dsl
       run: cd elasticsearch-dsl && bundle exec rake test:all