refactor(Workspace): PR feedback

Author: yt-ms

src/structurizr/workspace.py

@@ -231,7 +231,7 @@ def dump(
             kwargs: other arguments to pass through to `json.dumps()`.
         """
         filename = Path(filename)
-        with gzip.open(filename, "wt") if zip else open(filename, "wt") as handle:
+        with gzip.open(filename, "wt") if zip else filename.open("wt") as handle:
             handle.write(self.dumps(indent=indent, **kwargs))
 
     def dumps(self, indent: Optional[int] = None, **kwargs):

tests/integration/test_workspace_io.py

@@ -104,7 +104,7 @@ def test_save_and_load_workspace_to_string(monkeypatch):
 def test_load_workspace_from_bytes(monkeypatch):
     """Test loading from bytes rather than string."""
     path = DEFINITIONS / "GettingStarted.json"
-    with open(path, mode='rb') as file:
+    with open(path, mode="rb") as file:
         binary_content = file.read()
 
     workspace = Workspace.loads(binary_content)