move Marcel to emeritus (kyverno#10857)

Signed-off-by: chipzoller <[email protected]>

MAINTAINERS.md

@@ -7,7 +7,6 @@ Maintainers are approvers who have shown good technical judgement in guiding fea
 | Jim Bugwadia             | [@JimBugwadia](https://github.com/JimBugwadia)         | Nirmata                   |
 | Shuting Zhao             | [@realshuting](https://github.com/realshuting)         | Nirmata                   |
 | Chip Zoller              | [@chipzoller](https://github.com/chipzoller)           | Stackwatch (Kubecost)     |
-| Marcel Müller            | [@MarcelMue](https://github.com/MarcelMue)             | Giant Swarm GmbH          |
 | Charles-Edouard Brétéché | [@eddycharly](https://github.com/eddycharly)           | Nirmata                   |
 | Vishal Choudhary         | [@vishal-chdhry](https://github.com/vishal-chdhry)     | Nirmata                   |
 | Mariam Fahmy             | [@MariamFahmy98](https://github.com/MariamFahmy98)     | Nirmata                   |
@@ -22,3 +21,4 @@ Maintainers are approvers who have shown good technical judgement in guiding fea
 | Prateek Pandey           | [@prateekpandey14](https://github.com/prateekpandey14) |                           |
 | Sambhav Kothari          | [@samj1912](https://github.com/samj1912)               | Bloomberg                 |
 | Trey Dockendorf          | [@treydock](https://github.com/treydock)               | Ohio Supercomputer Center |
+| Marcel Müller            | [@MarcelMue](https://github.com/MarcelMue)             | Giant Swarm GmbH          |