add Julia Pfarr as current BIDS maintainer

Author: julia-pfarr

Maintainers_Guide.md

@@ -25,6 +25,7 @@ See also: [BIDS governance](https://bids.neuroimaging.io/collaboration/governanc
 | Christine Rogers ([@christinerogers](https://github.com/christinerogers)) | 2h/month        | Interoperability, EEG and multi-modal | Apr 2023 |
 | Nell Hardcastle ([@nellh](https://github.com/nellh))                      | 2h/week         |                                       | Jul 2023 |
 | Kimberly Ray ([@KimberlyLRay](https://github.com/KimberlyLRay))           | 1h/week         |                                       | Nov 2022 |
+| Julia-Katharina Pfarr ([@julia-pfarr](https://github.com/julia-pfarr))    | 2h/week         |                                       | Mar 2025 |
 
 In addition to the [BIDS Governance](https://bids.neuroimaging.io/collaboration/governance.html#bids-maintainers-group)
 classification of a maintainer, maintainers may declare a limited scope of responsibility.