refactor: update isort configuration

Use black profile, fix Makefile command, and run isort.

Makefile

@@ -30,4 +30,4 @@ flake8:
 
 .PHONY: isort
 isort:
-	$(POETRY) run isort -y
+	$(POETRY) run isort .

pyproject.toml

@@ -47,9 +47,7 @@ isort = "^5.0.4"
 docs = ["sphinx", "sphinx_rtd_theme", "sphinx-jsonschema"]
 
 [tool.isort]
-line_length = 88
-multi_line_output = 3 # conform to Black's style
-include_trailing_comma = true
+profile = "black"
 
 [build-system]
 requires = ["poetry>=0.12"]

rcds/challenge/challenge.py

@@ -6,9 +6,10 @@
 from .config import ConfigLoader
 
 if TYPE_CHECKING:  # pragma: no cover
+    import rcds
+
     from ..project import Project
     from ..project.assets import AssetManagerContext, AssetManagerTransaction
-    import rcds
 
 
 def _strip_scheme(url: str) -> str:

rcds/challenge/docker.py

@@ -9,8 +9,8 @@
 import pathspec  # type: ignore
 
 if TYPE_CHECKING:  # pragma: no cover
-    from .challenge import Challenge
     from ..project import Project
+    from .challenge import Challenge
 
 
 def flatten(i: Iterable[Union[str, Iterable[str]]]) -> Iterable[str]:

rcds/project/assets.py

@@ -20,9 +20,10 @@
 from warnings import warn
 
 if TYPE_CHECKING:  # pragma: no cover
-    from .project import Project
     import rcds
 
+    from .project import Project
+
 
 File = Union[BinaryIO, Path, bytes]
 """