Remove Matthias Zepper from sponsor list

Co-authored-by: Michael-A-Kuykendall <196678413+Michael-A-Kuykendall@users.noreply.github.com>

Author: Copilot

SPONSORS.md

@@ -10,7 +10,7 @@
 - **[Omar McIver](https://github.com/omarmciver)** - Priority support + featured sponsor
 
 ## Coffee Tier Heroes ($5+/month)
-- **[Matthias Zepper](https://github.com/MatthiasZepper)** - *First sponsor!*
+*Your support could be here*
 
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