Backport PR #41452: CI: Pin jinja2 to version lower than 3.0 (#41460)

Co-authored-by: Patrick Hoefler <[email protected]>

Author: meeseeksmachine

environment.yml

@@ -77,7 +77,7 @@ dependencies:
   - bottleneck>=1.2.1
   - ipykernel
   - ipython>=7.11.1
-  - jinja2  # pandas.Styler
+  - jinja2<3.0.0  # pandas.Styler
   - matplotlib>=2.2.2  # pandas.plotting, Series.plot, DataFrame.plot
   - numexpr>=2.6.8
   - scipy>=1.2

requirements-dev.txt

@@ -49,7 +49,7 @@ blosc
 bottleneck>=1.2.1
 ipykernel
 ipython>=7.11.1
-jinja2
+jinja2<3.0.0
 matplotlib>=2.2.2
 numexpr>=2.6.8
 scipy>=1.2