Add PR to the changelog

Author: antonwolfy

CHANGELOG.md

@@ -19,6 +19,7 @@ Also, that release drops support for Python 3.9, making Python 3.10 the minimum
 * Added implementation of `dpnp.scipy.special.erfinv` and `dpnp.scipy.special.erfcinv` [#2624](https://github.com/IntelPython/dpnp/pull/2624)
 * Enabled support of Python 3.14 [#2631](https://github.com/IntelPython/dpnp/pull/2631)
 * Added implementation of `dpnp.ndarray.tolist` method [#2652](https://github.com/IntelPython/dpnp/pull/2652)
+* Added implementation of `dpnp.ndarray.tofile` method [#2635](https://github.com/IntelPython/dpnp/pull/2635)
 
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