fix dates for 2027 (#342)

* fix dates for 2027

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

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Co-authored-by: Jesper Dramsch <jesper@dramsch.net>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: 3 people

_data/conferences.yml

@@ -528,7 +528,7 @@
   cfp: TBA
   timezone: Europe/Berlin
   place: Heidelberg, Germany
-  start: 2027-04-13
+  start: 2027-04-20
   end: 2027-04-22
   sub: PY,DATA
   location: