[ISV-3828] As a developer, I have a template for opening code reviews…

… with a checklist. (#761)

* [ISV-3828] Add pull request template.

* Update the template.

.github/pull_request_template.md

@@ -0,0 +1,13 @@
+### Merge Request Checklists
+
+- [ ] Development is done in feature branches
+- [ ] Code changes are submitted as pull request into a primary branch [Provide reason for non-primary branch submissions]
+- [ ] Code changes are covered with unit and integration tests.
+- [ ] Code passes all automated code tests:
+    - [ ] Linting
+    - [ ] Code formatter - Black
+    - [ ] Security scanners
+    - [ ] Unit tests
+    - [ ] Integration tests
+- [ ] Code is reviewed by at least 1 team member
+- [ ] Pull request is tagged with "risk/good-to-go" label for minor changes