Bump version to v1.3.9

extensions/ql-vscode/CHANGELOG.md

@@ -1,5 +1,7 @@
 # CodeQL for Visual Studio Code: Changelog
 
+## [UNRELEASED]
+
 ## 1.3.8 - 17 December 2020
 
 - Ensure databases are unlocked when removing them from the workspace. This will ensure that after a database is removed from VS Code, queries can be run on it from the command line without restarting the IDE. Requires CodeQL CLI 2.4.1 or later. [#681](https://github.com/github/vscode-codeql/pull/681)

extensions/ql-vscode/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "vscode-codeql",
-  "version": "1.3.8",
+  "version": "1.3.9",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

extensions/ql-vscode/package.json

@@ -4,7 +4,7 @@
   "description": "CodeQL for Visual Studio Code",
   "author": "GitHub",
   "private": true,
-  "version": "1.3.8",
+  "version": "1.3.9",
   "publisher": "GitHub",
   "license": "MIT",
   "icon": "media/VS-marketplace-CodeQL-icon.png",