Update @peertube/peertube-types to 4.2.2:

* using a stable version (4.2.2)
* minimum Peertube version is now 4.2.0
* removing some type customizations

Related to issue #122.

Note: there are still some quirks. See: https://github.com/Chocobozzz/PeerTube/issues/5446

CHANGELOG.md

@@ -1,5 +1,21 @@
 # Changelog
 
+## 6.1.0 (Not Released Yet)
+
+### Important Notes
+
+If you haven't upgraded to v6.0.0 yet, please read v6.0.0 changelog first.
+
+### New Features
+
+### Changes
+
+* Minimum Peertube version is now v4.2.0.
+
+### Minor changes and fixes
+
+* Update @types/peertube to v4.2.2 (requiring Peertube v4.2.0).
+
 ## 6.0.0
 
 ### Breaking changes