Update changelog and version after v4.34.1

Author: github-actions[bot]

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 See the [releases page](https://github.com/github/codeql-action/releases) for the relevant changes to the CodeQL CLI and language packs.
 
+## [UNRELEASED]
+
+No user facing changes.
+
 ## 4.34.1 - 20 Mar 2026
 
 - Downgrade default CodeQL bundle version to [2.24.3](https://github.com/github/codeql-action/releases/tag/codeql-bundle-v2.24.3) due to issues with a small percentage of Actions and JavaScript analyses. [#3762](https://github.com/github/codeql-action/pull/3762)

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "codeql",
-  "version": "4.34.1",
+  "version": "4.34.2",
   "private": true,
   "description": "CodeQL action",
   "scripts": {