Update pytest call

Author: OrderAndCh4oS

.travis.yml

@@ -7,10 +7,10 @@ python:
   - "3.8"
 
 script:
-- coverage run -m pytest
+- pytest --cov=./
 
 after_success:
-- codecov
+- bash <(curl -s https://codecov.io/bash)
 
 before_install:
   - pip install --upgrade pip