Set version to 4.0.1

Author: Phocacius

CHANGELOG.md

@@ -1,4 +1,5 @@
-## next bugfix release (4.0.1)
+## 4.0.1
+- Update mapbender/mapbender to [v4.0.1](https://github.com/mapbender/mapbender/blob/v4.0.1/CHANGELOG.md).
 - [Docker] Support ARM64 architecture ([PR#130](https://github.com/mapbender/mapbender-starter/pull/130))
 - [Docker] Add JPEG support and modify php.ini ([PR#132](https://github.com/mapbender/mapbender-starter/pull/132))
 - Ignore deprecation notices in production logs ([PR#131](https://github.com/mapbender/mapbender-starter/pull/131))