Merge pull request #477 from gprMax/dependabot/pip/jinja2-3.1.6

Bump jinja2 from 3.1.5 to 3.1.6

requirements.txt

@@ -31,7 +31,7 @@ ipykernel==6.29.3
 ipython==8.22.2
 ipywidgets==8.1.2
 jedi==0.19.1
-Jinja2==3.1.5
+Jinja2==3.1.6
 json5==0.9.24
 jsonschema==4.21.1
 jsonschema-specifications==2023.12.1