[Communication] - Phone Numbers - Prepare for GA 1.2.0 release (Azure#25382)

### Packages impacted by this PR


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### Describe the problem that is addressed by this PR


### What are the possible designs available to address the problem? If
there are more than one possible design, why was the one in this PR
chosen?


### Are there test cases added in this PR? _(If not, why?)_


### Provide a list of related PRs _(if any)_


### Command used to generate this PR:**_(Applicable only to SDK release
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### Checklists
- [ ] Added impacted package name to the issue description
- [ ] Does this PR needs any fixes in the SDK Generator?** _(If so,
create an Issue in the
[Autorest/typescript](https://github.com/Azure/autorest.typescript)
repository and link it here)_
- [ ] Added a changelog (if necessary)

Author: danielortega-msft

sdk/communication/communication-phone-numbers/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.2.0-beta.5 (Unreleased)
+## 1.2.0 (2023-03-28)
 
 ### Features Added
 - Added support for SIP routing API version `2023-03-01`, releasing SIP routing functionality from public preview to GA.
@@ -9,10 +9,6 @@
 ### Breaking Changes
 - Changed public methods `getTrunks` to `listTrunks` and `getRoutes` to `listRoutes`.
 
-### Bugs Fixed
-
-### Other Changes
-
 ## 1.2.0-beta.4 (2023-01-10)
 - Adds support for Azure Communication Services Phone Numbers Browse API Methods.
 - Adds support for Direct routing configuration management.

sdk/communication/communication-phone-numbers/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@azure/communication-phone-numbers",
-  "version": "1.2.0-beta.5",
+  "version": "1.2.0",
   "description": "SDK for Azure Communication service which facilitates phone number management.",
   "sdk-type": "client",
   "main": "dist/index.js",

sdk/communication/communication-phone-numbers/src/generated/src/phoneNumbersClient.ts

@@ -1,4 +1,4 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-export const SDK_VERSION: string = "1.2.0-beta.5";
+export const SDK_VERSION: string = "1.2.0";

sdk/communication/communication-phone-numbers/src/generated/src/siprouting/sipRoutingClientContext.ts

@@ -7,7 +7,7 @@
 ```yaml
 package-name: "@azure/communication-phone-numbers"
 description: Azure Communication SIP Configuration Service
-package-version: 1.2.0-beta.5
+package-version: 1.2.0
 generate-metadata: false
 license-header: MICROSOFT_MIT_NO_VERSION
 output-folder: ../src/generated

sdk/communication/communication-phone-numbers/src/generated/src/tracing.ts

@@ -7,7 +7,7 @@
 ```yaml
 package-name: "@azure/communication-phone-numbers"
 description: Phone number configuration client
-package-version: 1.2.0-beta.5
+package-version: 1.2.0
 license-header: MICROSOFT_MIT_NO_VERSION
 output-folder: ../src/generated
 tag: package-phonenumber-2022-12-01