Update changelog

CHANGELOG.md

@@ -22,6 +22,7 @@
 - Add AccountInterstitial model and controller ([8766ccfe](https://github.com/pixelfed/pixelfed/commit/8766ccfe))
 - Add Blurhash encoder ([fad102bf](https://github.com/pixelfed/pixelfed/commit/fad102bf))
 - Add autospam feature ([b892bcf0](https://github.com/pixelfed/pixelfed/commit/b892bcf0))
+- Add hCaptcha ([082c1ccb](https://github.com/pixelfed/pixelfed/commit/082c1ccb))
 
 ### Updated
 - Updated PostComponent, fix remote urls ([42716ccc](https://github.com/pixelfed/pixelfed/commit/42716ccc))