bug #378 Fix phpdoc for getTranslations (dannyvw)

This PR was merged into the 1.9-dev branch.

Discussion
----------

| Q               | A
| --------------- | -----
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no <!-- don't forget to update the UPGRADE-*.md file -->
| Related tickets | fixes #371
| License         | MIT


Commits
-------

bb28c34 Fix phpdoc for getTranslations

src/Component/Model/TranslatableInterface.php

@@ -18,7 +18,7 @@
 interface TranslatableInterface
 {
     /**
-     * @return Collection|TranslatableInterface[]
+     * @return Collection|TranslationInterface[]
      * @psalm-return Collection<array-key, TranslationInterface>
      */
     public function getTranslations(): Collection;