Update donations (#1674)

Author: josefpihrt

Donations.md

@@ -8,6 +8,7 @@
 | $1000.00 USD | Microsoft | -
 | $13.00 USD / month | @IanKemp | starting July 2021
 | $5.00 USD / month | @Genbox | starting October 2024
+| $5.00 USD / month | Timo Nürnberg | starting March 2025
 
 ### Donations
 

README.md

@@ -43,6 +43,7 @@ Special thanks to:
   - Microsoft for donating $1000.00 USD.
   - @IanKemp for donating $13.00 USD / month starting July 2021.
   - @Genbox for donating $5.00 USD / month starting October 2024.
+  - Timo Nürnberg for donating $5.00 USD / month starting March 2025.
 
 ## .NET Foundation