Move #72 back to 2.3.0

In the end the main change was released.

CHANGELOG.rst

@@ -1,12 +1,8 @@
-2.4.0 (UNRELEASED)
-------------------
-
-* `#72 <https://github.com/ESSS/pytest-regressions/pull/72>`__: New ``ndarrays_regression``, for comparing NumPy arrays with arbitrary shape.
-
 2.3.0 (2022-01-04)
 ------------------
 
 * `#54 <https://github.com/ESSS/pytest-regressions/pull/54>`__: New ``--with-test-class-names`` command-line flag to consider test class names when composing the expected and obtained data filenames. Needed when the same module contains different classes with the same method names.
+* `#72 <https://github.com/ESSS/pytest-regressions/pull/72>`__: New ``ndarrays_regression``, for comparing NumPy arrays with arbitrary shape.
 * `#74 <https://github.com/ESSS/pytest-regressions/pull/74>`__: Fix ``empty string bug`` on dataframe regression.
 
 2.2.0 (2020-01-27)