chore(action): update line-length to std 80 character

Author: LVivona

.github/workflows/python.yml

@@ -91,7 +91,7 @@ jobs:
       - name: Check style
         run: |
           pip install .[quality]
-          black --check --line-length 119 --target-version py35 py/synlink
+          black --check --line-length 80 --target-version py35 py/synlink
 
       - name: Run tests
         run: |