fix: GHA lint and tests workflow permissions

When dependabot creates a pull request, triggered github actions have read permissions only, and i.e. `MishaKav/pytest-coverage-comment` fails to submit a comment

Signed-off-by: Michal Fiedorowicz <mfiedorowicz@netboxlabs.com>

Author: mfiedorowicz

.github/workflows/lint-tests.yml

@@ -10,6 +10,11 @@ concurrency:
   group: ${{ github.workflow }}
   cancel-in-progress: false
 
+permissions:
+  contents: write
+  checks: write
+  pull-requests: write
+
 jobs:
   tests:
     runs-on: ubuntu-latest