Merge pull request #420 from gprMax/dependabot/pip/jinja2-3.1.3

Bump jinja2 from 3.1.2 to 3.1.3

requirements.txt

@@ -29,7 +29,7 @@ ipython-genutils==0.2.0
 ipywidgets==8.0.6
 isoduration==20.11.0
 jedi==0.18.2
-Jinja2==3.1.2
+Jinja2==3.1.3
 jsonpointer==2.3
 jsonschema==4.17.3
 jupyter==1.0.0