Update CHANGELOG for v2022.10.0

Author: andyleejordan

CHANGELOG.md

@@ -1,5 +1,16 @@
 # PowerShell Extension Release History
 
+## v2022.10.0
+### Thursday, October 20, 2022
+
+#### [vscode-powershell](https://github.com/PowerShell/vscode-powershell)
+
+
+#### [PowerShellEditorServices](https://github.com/PowerShell/PowerShellEditorServices) v3.5.4
+
+- ✨ 🚂 [PowerShellEditorServices #1928](https://github.com/PowerShell/PowerShellEditorServices/pull/1928) - Generalize the execution busy status to all PowerShell tasks.
+- ✨ ‍🕵️ [PowerShellEditorServices #1916](https://github.com/PowerShell/PowerShellEditorServices/pull/1916) - Upgrade PSScriptAnalyzer to 1.21.0. (Thanks @bergmeister!)
+
 ## v2022.10.0-preview
 ### Friday, October 07, 2022