Migrate to pyproject

Closes #8 (closed) & #9 (closed)

teklia_toolbox/pagexml.py

@@ -78,7 +78,7 @@ class Region(PageXmlElement):
             assert len(list_x) == len(
                 list_y
             ), "the list of x and y coordinates do not have the same lengths"
-            for x, y in zip(list_x, list_y):
+            for x, y in zip(list_x, list_y, strict=True):
                 points.append((int(x), int(y)))
             return points
         else: