Bump version to v1.6.4 (#1278)

Co-authored-by: Andrew Eisenberg <aeisenberg@github.com>

Author: github-actions[bot]

extensions/ql-vscode/CHANGELOG.md

@@ -4,10 +4,6 @@
 
 ## 1.6.3 - 4 April 2022
 
-No user facing changes.
-
-## 1.6.2 - 4 April 2022
-
 - Fix a bug where the AST viewer was not synchronizing its selected node when the editor selection changes. [#1230](https://github.com/github/vscode-codeql/pull/1230)
 - Avoid synchronizing the `codeQL.cli.executablePath` setting. [#1252](https://github.com/github/vscode-codeql/pull/1252)
 - Open the directory in the finder/explorer (instead of just highlighting it) when running the "Open query directory" command from the query history view. [#1235](https://github.com/github/vscode-codeql/pull/1235)

extensions/ql-vscode/package-lock.json

@@ -4,7 +4,7 @@
   "description": "CodeQL for Visual Studio Code",
   "author": "GitHub",
   "private": true,
-  "version": "1.6.3",
+  "version": "1.6.4",
   "publisher": "GitHub",
   "license": "MIT",
   "icon": "media/VS-marketplace-CodeQL-icon.png",