minor #16134 [Doctrine] Update associations.rst (VosKoen)

This PR was merged into the 5.3 branch.

Discussion
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[Doctrine] Update associations.rst

syntax error in orphanRemoval=true

In the Attributes code example #[ORM\OneToMany(mappedBy: 'user', targetEntity: Recipe::class, orphanRemoval=true)], doesn't work because of wrong syntax.
should be #[ORM\OneToMany(mappedBy: 'user', targetEntity: Recipe::class, orphanRemoval: true)]

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Commits
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da7c885 Update associations.rst

Author: javiereguiluz

doctrine/associations.rst

@@ -676,7 +676,7 @@ that behavior, use the `orphanRemoval`_ option inside ``Category``:
 
         // ...
 
-        #[ORM\OneToMany(targetEntity: Product::class, mappedBy: "category", orphanRemoval=true)]
+        #[ORM\OneToMany(targetEntity: Product::class, mappedBy: "category", orphanRemoval: true)]
         private $products;