feat: fix ruff linting

.github/workflows/build.yaml

@@ -41,6 +41,6 @@ jobs:
               python tools/dump_localstorage.py --help
               python tools/dump_sessionstorage.py --help
       - name: Calculate diff 👽
-        run: | 
+        run: |
             git diff --no-index --word-diff .\forensicsim-data\expected-result\jane_doe_v_1_4_00_11161.json jane_doe_v_1_4_00_11161.json
             git diff --no-index --word-diff .\forensicsim-data\expected-result\john_doe_v_1_4_00_11161.json john_doe_v_1_4_00_11161.json

pyproject.toml

@@ -46,7 +46,7 @@ dev=[
 python_version = "3.9"
 
 exclude = [
-    "tools/"
+    "tools/**.py"
 ]
 
 # https://github.com/python/mypy/issues/2410

src/forensicsim/backend.py

@@ -284,5 +284,4 @@ def write_results_to_json(data: object, outputpath: Path) -> None:
 def parse_json() -> Any:
     # read data from a file. This is only for testing purpose.
     with Path("teams.json").open() as json_file:
-        data = json.load(json_file)
-    return data
+        return json.load(json_file)