Fixed changelog release date (Azure#18886)

LarryOsterman · web-flow · commit 105bd7edd232 · 2021-01-29T16:36:05.000-08:00
diff --git a/sdk/attestation/azure-security-attestation/CHANGELOG.md b/sdk/attestation/azure-security-attestation/CHANGELOG.md
@@ -1,5 +1,5 @@
 # Release History
 
-## 1.0.0-beta.1 (Unreleased)
+## 1.0.0-beta.1 (2021-01-28)
 
 - Initial release. Please see the README and wiki for information on the new design.
