Fixed CI/CD workflow for issue #182 / #232 (#254)

* updated the CI/CD workflow so it works

* fixing typos

* changed the branch name for the CI pull request

* fixing PEP8 issues inside binary_search.py

* removed venv from flask8 local testing

* fixing executable permissions

coding/python/binary_search.py

@@ -9,7 +9,7 @@ def binary_search(arr: List[int], lb: int, ub: int, target: int) -> int:
     A Binary Search Example which has O(log n) time complexity.
     """
     if lb <= ub:
-        mid: int = lb + (ub -lb)// 2
+        mid: int = lb + (ub - lb) // 2
         if arr[mid] == target:
             return mid
         elif arr[mid] < target: