Prepare 5.4.3 (Alamofire#3441)

* Version to 5.4.3.

* Update Jazzy docs.

* Formatting.

Prepare 5.4.2 Release (Alamofire#3430)

* Prepare 5.4.2 release.

* Update Jazzy docs.

Update Podspec.

Version to 5.4.0.

Prepare 5.3.0 (Alamofire#3328)

* Version to 5.3.0.

* Apply the latest formatting from SwiftFormat.

* Update Gems.

* Update Jazzy docs.

Prepare 5.2.2 Release (Alamofire#3262)

* Version to 5.2.2.

* Update Jazzy docs.

Prepare 5.2.1 (Alamofire#3208)

* Version to 5.2.1.

* Update Jazzy docs.

Prepare 5.2.0 Release (Alamofire#3189)

* Version to 5.2.0.

* Update Jazzy docs.

Prepare 5.1 Release (Alamofire#3143)

* Version to 5.1.0.

* Update Jazzy docs.

* Add one item to the CHANGELOG.

Prepare 5.0.5 (Alamofire#3129)

* Version to 5.0.5.

* Update Jazzy docs.