chore: Move jtescher from Maintainer to Emeritus (#2815)

Author: jtescher

README.md

@@ -181,7 +181,6 @@ you're more than welcome to participate!
 
 * [Cijo Thomas](https://github.com/cijothomas)
 * [Harold Dost](https://github.com/hdost)
-* [Julian Tescher](https://github.com/jtescher)
 * [Lalit Kumar Bhasin](https://github.com/lalitb)
 * [Utkarsh Umesan Pillai](https://github.com/utpilla)
 * [Zhongyang Wu](https://github.com/TommyCpp)
@@ -195,6 +194,7 @@ you're more than welcome to participate!
 
 * [Dirkjan Ochtman](https://github.com/djc)
 * [Jan Kühle](https://github.com/frigus02)
+* [Julian Tescher](https://github.com/jtescher)
 * [Isobel Redelmeier](https://github.com/iredelmeier)
 * [Mike Goldsmith](https://github.com/MikeGoldsmith)