Set fetch-depth to fix partial linting of PRs

Author: sqrrrl

.github/workflows/lint.yaml

@@ -27,6 +27,9 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
+        with:
+          # Full git history is needed to get a proper list of changed files within `super-linter`
+          fetch-depth: 0
       - uses: github/super-linter/[email protected]
         env:
           ERROR_ON_MISSING_EXEC_BIT: true