Update CHANGELOG.md (#41273)

* Update CHANGELOG.md

* Update CHANGELOG.md

Author: GrahamMThomas

sdk/healthdataaiservices/azure-health-deidentification/CHANGELOG.md

@@ -1,13 +1,9 @@
 # Release History
 
-## 1.0.0-beta.1 (Unreleased)
+## 1.0.0-beta.1 (2024-08-15)
 
 - Azure Deidentification client library for Java. This package contains Microsoft Azure Deidentification client library.
 
 ### Features Added
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+- Azure Deidentification client library for Java. This package contains Microsoft Azure Deidentification client library.