Update TeamSpeak maintainers and remove deprecation notice (#2657)

* Update teamspeak maintainers and remove deprecation notice

* Also remove the deprecation notice from the README-short.txt

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Co-authored-by: Achim Klittich <[email protected]>

teamspeak/README-short.txt

@@ -1 +1 @@
-DEPRECATED; TeamSpeak is software for quality voice communication via the Internet.
+TeamSpeak is software for quality voice communication via the Internet.

teamspeak/deprecated.md

@@ -1 +0,0 @@
-This image is deprecated due to maintainer inactivity (last updated Sep 2023; [docker-library/official-images#15332](https://github.com/docker-library/official-images/pull/15332)).

teamspeak/maintainer.md

@@ -1 +1 @@
-TeamSpeak Developers [nwerensteijn](https://github.com/nwerensteijn) and [muenchow](https://github.com/muenchow)
+TeamSpeak Developers [HuppiN](https://github.com/HuppiN) and [achimklittich](https://github.com/achimklittich)