move to github hosted runner

.github/workflows/tests_linters.yml

@@ -4,7 +4,7 @@ on: [ push, pull_request ]
 
 jobs:
   tests-and-linters:
-    name: "Python 3.9 on instadeep-ci"
+    name: "Python 3.9 on GitHub Hosted runner"
     runs-on: ubuntu-latest
     container:
         image: python:3.9
@@ -18,8 +18,6 @@ jobs:
         run: pip install .[dev]
       - name: List python packages 📦
         run: pip list
-      # Workaround for https://github.com/actions/checkout/issues/1169
-      - run: git config --system --add safe.directory $GITHUB_WORKSPACE
       - name: Run linters 🖌️
         run: pre-commit run --all-files --verbose
       - name: Run tests 🧪