Prepare for release: v5.5.1 (#2270)

* Added Changelog for v5.5.1

* Bump version: 5.5.0 → 5.5.1

Prepare for release: v5.5.0 (#2255)

* Updated version and relevant maintainers in SECURITY.md

* Bump version: 5.5.0rc3 → 5.5.0

* Added Changelog for v5.5.0

Prepare for (pre) release: v5.5.0rc3 (#2247)

* Bump version: 5.5.0rc2 → 5.5.0rc3

* Added Changelog for v5.5.0rc3

Prepare for (pre) release: v5.5.0rc2 (#2181)

* Added Changelog for v5.5.0rc2

* Bump version: 5.5.0rc1 → 5.5.0rc2

Prepare for (pre) release: v5.5.0rc1 (#2150)

* Bump version: 5.4.2 → 5.5.0rc1

* Added Changelog for v5.5.0rc1

* Fixed typo

Prepare for release: v5.4.2 (#2119)

* Bump version: 5.4.1 → 5.4.2

* Added Changelog for v5.4.2

Prepare for release: v5.4.1 (#2109)

* Bump version: 5.4.0 → 5.4.1

* Added Changelog for v5.4.1

Prepare for release: v5.4.0 (#2095)

* Added Changelog for v5.4.0

* Bump version: 5.4.0rc3 → 5.4.0

Bump version: 5.4.0rc2 → 5.4.0rc3

Bump version: 5.4.0rc1 → 5.4.0rc2