Update changelog.md

Signed-off-by: Tomas Pereira de Vasconcelos <tomasvasconcelos1@gmail.com>

Author: tpvasconcelos

docs/reference/changelog.md

@@ -13,6 +13,7 @@ Unreleased changes
 - Bump actions/github-script from 7 to 8 ({gh-pr}`338`)
 - pre-commit autoupdate ({gh-pr}`340`)
 - pre-commit autoupdate ({gh-pr}`341`)
+- Bump github/codeql-action from 3 to 4 ({gh-pr}`344`)
 
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