Incorrect django request validation for re_path urls

[mnowakowska]

When I'm trying to validate a django request against the defined schema I'm getting a validation error.

E           openapi_core.templating.paths.exceptions.PathNotFound: Path not found for https://brown.org/^my/url/$

../.pyenv/versions/3.9.0/envs/venv3.9.0/lib/python3.9/site-packages/openapi_core/templating/paths/finders.py:24:PathNotFound

My django url definition: re_path(r'^my/url/$', view())
My openapi schema url: /my/url/

I've debbugged a bit this issue and:
value of this line should be: 'my/url/'
but currently is '^my/url/$'

The value of request.resolver_match.route in my case is '^my/url/$'

I think the PATH_PARAMETER_PATTERN regex should be adjusted to escape also special characters like ^ and $ from request.resolver_match.route value