docs(changelog): add version 4.0.1

CHANGELOG.md

+## Version 4.0.1 (2024-02-26)
+
+Use `mock_aws` instead of `mock_s3`
+(as `moto@v5` does not implement `mock_s3` anymore)
+
 ## Version 4.0.0 (2023-10-05)
 
 ### 🎉 Code changes

cubicweb_s3storage/__pkginfo__.py

@@ -5,7 +5,7 @@
 modname = "cubicweb_s3storage"
 distname = "cubicweb-s3storage"
 
-numversion = (4, 0, 0)
+numversion = (4, 0, 1)
 version = ".".join(str(num) for num in numversion)
 
 license = "LGPL"