chore: Enable mergify for auto merging of PRs (#7810)
chore: Enable mergify for auto merging of PRs (#7810)

This PR enables mergify.io integration for automatic merging of Pull Requests.

Pull Requests will be merged if the following checks are passing

- Codacy
- Travis
- Semantic Title
- Snyk (package.json and requirements.txt)
- don't-merge label is not added
- PR is approved by atleast one person
yashodhank/frappe,almeidapaulopt/frappe,saurabh6790/frappe,saurabh6790/frappe,mhbu50/frappe,vjFaLk/frappe,vjFaLk/frappe,almeidapaulopt/frappe,yashodhank/frappe,StrellaGroup/frappe,yashodhank/frappe,mhbu50/frappe,frappe/frappe,saurabh6790/frappe,StrellaGroup/frappe,yashodhank/frappe,saurabh6790/frappe,StrellaGroup/frappe,frappe/frappe,vjFaLk/frappe,adityahase/frappe,adityahase/frappe,frappe/frappe,almeidapaulopt/frappe,adityahase/frappe,vjFaLk/frappe,mhbu50/frappe,almeidapaulopt/frappe,mhbu50/frappe,adityahase/frappe