Merge pull request #294 from rcaspart/patch-1

Update deRSE25 URL

Author: knarrff

_includes/events/2025.md

@@ -1,4 +1,4 @@
-| deRSE 2025 | 2025-02-25 - 2025-02-27 | Karlsruhe | [deRSE25](https://events.hifis.net/event/1741/) | co-located with [SE25](https://se2025.sdq.kastel.kit.edu/co-located-conferences/) |
+| deRSE 2025 | 2025-02-25 - 2025-02-27 | Karlsruhe | [deRSE25](https://events.hifis.net/e/derse25) | co-located with [SE25](https://se2025.sdq.kastel.kit.edu/co-located-conferences/) |
 | RSECon25 | 2025-09 | Warwick, UK | [RSECon25](https://society-rse.org/) | |
 | US-RSE'25 | 2025-10 | Philadelphia, USA | [US-RSE'25](https://us-rse.org/usrse25/) | |
 | FOSDEM'25 | 2025-02-01 - 2025-02-02 | Brussels | [FOSDEM'25](https://fosdem.org/2025/) | |