Merge pull request #726 from European-XFEL/dependabot/pip/dot-github/dependabot/pytz-2026.1.post1

build(deps): bump pytz from 2025.2 to 2026.1.post1 in /.github/dependabot

Author: takluyver

.github/dependabot/constraints.txt

@@ -10,7 +10,7 @@ Pillow<12.2.0
 psutil==7.2.2
 pyparsing==3.3.2
 python-dateutil==2.9.0.post0
-pytz==2025.2
+pytz==2026.1.post1
 pyzmq==27.1.0
 six==1.17.0
 xarray<2026.3.0