Merge pull request #2994 from github/mergeback/changelog/v3.28.21

Merge pull request #2994 from github/mergeback/changelog/v3.28.21 · github/codeql-action@8388115

Original file line number	Diff line number	Diff line change
`@@ -28,6 +28,10 @@ No user facing changes.`
`28`	`28`	`- Update default CodeQL bundle version to 2.22.0. [#2925](https://github.com/github/codeql-action/pull/2925)`
`29`	`29`	`- Bump minimum CodeQL bundle version to 2.16.6. [#2912](https://github.com/github/codeql-action/pull/2912)`
`30`	`30`
	`31`	`+## 3.28.21 - 28 July 2025`
	`32`	`+`
	`33`	`+No user facing changes.`
	`34`	`+`
`31`	`35`	`## 3.28.20 - 21 July 2025`
`32`	`36`
`33`	`37`	`- Remove support for combining SARIF files from a single upload for GHES 3.18, see [the changelog post](https://github.blog/changelog/2024-05-06-code-scanning-will-stop-combining-runs-from-a-single-upload/). [#2959](https://github.com/github/codeql-action/pull/2959)`