fixup! tools: add a check for clean git tree after tests

Author: aduh95

.github/workflows/test-linux.yml

@@ -84,7 +84,7 @@ jobs:
         run: make test-ci -j1 V=1 TEST_CI_ARGS="-p actions --measure-flakiness 9"
       - name: Ensure running tests did not cause any change in the tree
         working-directory: node
-        run: git diff --name-only --exit-code
+        run: git add -A && git diff --name-only --exit-code --staged
       - name: Re-run test in a folder whose name contains unusual chars
         run: |
           mv node "$DIR"