add TA changes from 2021 January (Azure#18652)

Author: mssfang

sdk/textanalytics/azure-ai-textanalytics/CHANGELOG.md

@@ -1,6 +1,9 @@
 # Release History
 ## 5.1.0-beta.4 (Unreleased)
 
+## 5.0.2 (2021-01-14)
+### Dependency updates
+- Update dependency version, `azure-core` to 1.12.0 and `azure-core-http-netty` to 1.7.1.
 
 ## 5.1.0-beta.3 (2020-11-19)
 ### New features

sdk/textanalytics/azure-ai-textanalytics/README.md

@@ -58,7 +58,7 @@ az cognitiveservices account create \
 <dependency>
     <groupId>com.azure</groupId>
     <artifactId>azure-ai-textanalytics</artifactId>
-    <version>5.1.0-beta.3</version>
+    <version>5.1.0-beta.4</version>
 </dependency>
 ```
 [//]: # ({x-version-update-end})
@@ -119,7 +119,7 @@ Authentication with AAD requires some initial setup:
 <dependency>
     <groupId>com.azure</groupId>
     <artifactId>azure-identity</artifactId>
-    <version>1.2.0</version>
+    <version>1.2.2</version>
 </dependency>
 ```
 [//]: # ({x-version-update-end})