Update CHANGELOG for v2023.3.1-preview

Author: andyleejordan

CHANGELOG.md

@@ -1,5 +1,21 @@
 # PowerShell Extension Release History
 
+## v2023.3.1-preview
+### Wednesday, March 15, 2023
+
+#### [vscode-powershell](https://github.com/PowerShell/vscode-powershell)
+
+- 🐛 ✂️ [vscode-powershell #4455](https://github.com/PowerShell/vscode-powershell/pull/4455) - Fix up "Calculated Property" snippet. (Thanks @DougDyreng!)
+- 🐛 📺 [vscode-powershell #4453](https://github.com/PowerShell/vscode-powershell/pull/4454) - Fix `GenerateBugReport` command to pre-fill template.
+
+#### [PowerShellEditorServices](https://github.com/PowerShell/PowerShellEditorServices) v3.8.2
+
+- 🐛 🙏 [vscode-powershell #4443](https://github.com/PowerShell/PowerShellEditorServices/pull/2006) - Fix declaration detection for variables with type constraints.
+- ✨ 🙏 [vscode-powershell #3604](https://github.com/PowerShell/PowerShellEditorServices/pull/2003) - Add document symbols for `#region`.
+- ✨ 🙏 [PowerShellEditorServices #2000](https://github.com/PowerShell/PowerShellEditorServices/pull/2000) - Code clean-up and fixing end-to-end tests.
+- 🐛 🐢 [PowerShellEditorServices #1998](https://github.com/PowerShell/PowerShellEditorServices/pull/1998) - Support module-qualified calls for Pester keywords. (Thanks @fflaten!)
+- 🐛 🙏 [vscode-powershell #3192](https://github.com/PowerShell/PowerShellEditorServices/pull/1997) - Fix New-EditorFile adding content in current file. (Thanks @fflaten!)
+
 ## v2023.3.0-preview
 ### Thursday, March 09, 2023