[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

odc/stats/plugins/cloud_proba_percentiles.py

@@ -2,7 +2,7 @@
 Long-term percentiles of S2Cloudless probabilities.
 
 Useful for locating regions persistently misclassified as
-cloud by S2Cloudless, which is known to have a high false 
+cloud by S2Cloudless, which is known to have a high false
 positive rate.
 
 """