Release v1.2.1 (#26)

Update CHANGELOG.md for v1.2.1 release.

CHANGELOG.md

@@ -2,6 +2,28 @@ CHANGELOG
 =========
 
 
+1.2.1 (2023-04-02)
+------------------
+
+**Ogólne usprawnienia**:
+
+* Aktualizacja tłumaczeń głównego silnika Flarum.
+
+
+**Zaktualizowano tłumaczenia dla rozszerzeń**:
+
+* [`antoinefr/flarum-ext-money`](https://github.com/AntoineFr/flarum-ext-money)
+* [`blomstra/realtime`](https://extiverse.com/extension/blomstra/realtime)
+* [`flarum/likes`](https://github.com/flarum/likes)
+* [`fof/ignore-users`](https://github.com/FriendsOfFlarum/ignore-users)
+* [`fof/reactions`](https://github.com/FriendsOfFlarum/reactions)
+* [`ianm/follow-users`](https://github.com/imorland/follow-users)
+* [`ianm/synopsis`](https://github.com/imorland/synopsis)
+
+
+Wszystkie zmiany: [v1.2.0...v1.2.1](https://github.com/flarum-lang/polish/compare/v1.2.0...v1.2.1).
+
+
 1.2.0 (2023-03-12)
 ------------------