fix typo also for sanetize -> sanitize (#17)

Author: floriankrb

Diff for: src/anemoi/utils/sanetize.py renamed to src/anemoi/utils/sanitize.py

@@ -5,6 +5,6 @@
 # granted to it by virtue of its status as an intergovernmental organisation
 # nor does it submit to any jurisdiction.
 
-from .sanetise import sanetise as sanetize
+from .sanitise import sanitise as sanitize
 
-__all__ = ["sanetize"]
+__all__ = ["sanitize"]