only build prs and main

.drone.yml

@@ -12,3 +12,9 @@ steps:
   - pipenv install --dev
   - pipenv run flake8
   - pipenv run python -m unittest discover ki
+
+trigger:
+  branch:
+  - main
+  event:
+  - pull_request

drone.yml

@@ -1,14 +0,0 @@
----
-kind: pipeline
-type: docker
-name: default
-
-steps:
-- name: qa
-  image: python3.8-alpine
-  commands:
-  - apk add --no-cache gcc g++ musl-dev python3-dev
-  - pip3 install pipenv
-  - pipenv install --system
-  - flake8
-  - python -m unittest discover ki