[5.5] Add release notes for latest 5.5.4x releases (#25633)
[5.5] Add release notes for latest 5.5.4x releases (#25633)

* add release notes for 5.5.41

This adds the release notes for 5.5.41 using the diff link below as the source of documented changes and fixes.

https://github.com/laravel/framework/compare/v5.5.40%E2%80%A6v5.5.41

* add release notes for 5.4.42

This adds the release notes for 5.4.42 using the diff link below as the source of changes.

https://github.com/laravel/framework/compare/v5.5.41%E2%80%A6v5.5.42

* add release notes for v5.5.43

This adds the release notes for v5.5.43 using the diff link below as the source of changes.

https://github.com/laravel/framework/compare/v5.5.42%E2%80%A6v5.5.43

samlev/framework,cybercog/framework,mul14/laravel-framework,dwightwatson/framework,arturock/framework,JosephSilber/framework,cybercog/framework,bytestream/framework,mul14/laravel-framework,leo108/laravel_framework,tomschlick/framework,stevebauman/framework,morrislaptop/framework,crynobone/framework,stevebauman/framework,crynobone/framework,driesvints/framework,halaei/framework,leo108/laravel_framework,samlev/framework,mul14/laravel-framework,notebowl/laravel-framework,halaei/framework,arturock/framework,driesvints/framework,notebowl/laravel-framework,laravel/framework,lucasmichot/framework,dwightwatson/framework,bytestream/framework,hafezdivandari/framework,JosephSilber/framework,morrislaptop/framework,hafezdivandari/framework,mul14/laravel-framework,JamesForks/framework,tomschlick/framework,cybercog/framework,lucasmichot/framework,halaei/framework,tomschlick/framework,arturock/framework,JamesForks/framework,laravel/framework