Prepare Key Vault for release (Azure#2857)

* Prepare Key Vault for release

* Use correct heading

Co-authored-by: Copilot <[email protected]>

---------

Co-authored-by: Copilot <[email protected]>

Author: heaths

sdk/keyvault/azure_security_keyvault_certificates/CHANGELOG.md

@@ -1,17 +1,15 @@
 # Release History
 
-## 0.5.0 (Unreleased)
-
-### Features Added
+## 0.5.0 (2025-08-05)
 
 ### Breaking Changes
 
 - Removed the `CertificateClientExt` trait for `CertificateClient`. The `begin_create_certificate` and `resume_certificate_operation` methods are implemented for `CertificateClient` with the same method signatures.
 
-### Bugs Fixed
-
 ### Other Changes
 
+- Updated dependencies.
+
 ## 0.4.0 (2025-07-10)
 
 ### Features Added

sdk/keyvault/azure_security_keyvault_keys/CHANGELOG.md

@@ -1,15 +1,11 @@
 # Release History
 
-## 0.6.0 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
+## 0.6.0 (2025-08-05)
 
 ### Other Changes
 
+- Updated dependencies.
+
 ## 0.5.0 (2025-07-10)
 
 ### Breaking Changes

sdk/keyvault/azure_security_keyvault_secrets/CHANGELOG.md

@@ -1,15 +1,11 @@
 # Release History
 
-## 0.6.0 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
-
-### Bugs Fixed
+## 0.6.0 (2025-08-05)
 
 ### Other Changes
 
+- Updated dependencies.
+
 ## 0.5.0 (2025-07-10)
 
 ### Breaking Changes