Fixed minor typo when converted script to WSGI app.
Fixed minor typo when converted script to WSGI app.

carlos-jenkins/python-github-webhooks,Tech-Twnel/python-webhooks,irtnog/python-github-webhooks,curious-attempt-bunny/github-webhooks-docker-deploy,lollerbus/python-github-webhooks,curious-attempt-bunny/github-webhooks-docker-deploy,controlzee/python-github-webhooks,Tech-Twnel/python-webhooks