attempt to fix the github actions

for whatever reason, ruff starts to care about the `build/`
subdirectory with mercedes-benz#393
. Since this is probably an artifact of pip, let's just delete this
directory before linting.

Signed-off-by: Andreas Lauser <andreas.lauser@mercedes-benz.com>
Signed-off-by: Christian Hackenbeck <christian.hackenbeck@mercedes-benz.com>

Author: andlaus

.github/workflows/tests.yml

@@ -54,6 +54,7 @@ jobs:
           pip install --upgrade pip
           pip install .
           pip install .[test]
+	  rm -rf build
 
       - name: Static type checking (mypy)
         run: |