Update changenote

Co-authored-by: Sid Shankar <sidshank@github.com>

Author: joefarebrother

python/ql/src/change-notes/2024-08-27-sensitive-certificate.md

@@ -1,4 +1,4 @@
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 category: minorAnalysis
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-* The `py/clear-text-logging-sensitive-data` and `py/clear-text-storage-sensitive-data` queries have been updated to exclude the `certificate` classification of of sensitive sources, which often do not actually contain sensitive data.
+* The `py/clear-text-logging-sensitive-data` and `py/clear-text-storage-sensitive-data` queries have been updated to exclude the `certificate` classification of sensitive sources, which often do not contain sensitive data.