Bump min version of jinja2 (#26866)

We use the `dumps` kwarg, which was added in 3.0 of jinja2.

(cherry picked from commit 4fa476b)

setup.cfg

@@ -119,7 +119,7 @@ install_requires =
     importlib_metadata>=1.7;python_version<"3.9"
     importlib_resources>=5.2;python_version<"3.9"
     itsdangerous>=2.0
-    jinja2>=2.10.1
+    jinja2>=3.0.0
     jsonschema>=3.2.0
     lazy-object-proxy
     linkify-it-py>=2.0.0