Update dependency doctrine/orm to v3.5.3 (#4715)

This PR contains the following updates:

| Package | Change | Age | Confidence |
|---|---|---|---|
| [doctrine/orm](https://www.doctrine-project.org/projects/orm.html)
([source](https://redirect.github.com/doctrine/orm)) | `3.5.2` ->
`3.5.3` |
[![age](https://developer.mend.io/api/mc/badges/age/packagist/doctrine%2form/3.5.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/packagist/doctrine%2form/3.5.2/3.5.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>doctrine/orm (doctrine/orm)</summary>

###
[`v3.5.3`](https://redirect.github.com/doctrine/orm/compare/3.5.2...3.5.3)

[Compare
Source](https://redirect.github.com/doctrine/orm/compare/3.5.2...3.5.3)

</details>

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composer.json

@@ -20,7 +20,7 @@
         "doctrine/doctrine-bundle": "2.15.2",
         "doctrine/doctrine-fixtures-bundle": "4.1.1",
         "doctrine/doctrine-migrations-bundle": "3.4.3",
-        "doctrine/orm": "3.5.2",
+        "doctrine/orm": "3.5.3",
         "friendsofsymfony/ckeditor-bundle": "2.6.0",
         "gedmo/doctrine-extensions": "3.21.0",
         "jaybizzle/crawler-detect": "1.3.6",