devel/ruby-i18n: update to 1.8.11

1.8.11 (2021-11-02)

What's Changed

* Fix typo in documentation by @rkh in #565
* Improve available locale check in Simple backend by @codealchemy in #566
* Fix typo in Simple backend JSON test by @codealchemy in #572
* Fix a build error when using Psych 4.0 by @koic in #569

New Contributors

* @rkh made their first contribution in #565
* @codealchemy made their first contribution in #566
* @koic made their first contribution in #569

(taca)