Fix CI failures on the Kandinsky6 PR

- tests/others/test_utils.py: assert the caller file path without assuming the checkout directory is named `diffusers`.
- .github/workflows/pr_tests.yml: raise PYTEST_TIMEOUT to 300 s for the example and pipeline CPU steps. Both run several workers with four threads each on an 8-vCPU runner, and the checkpointing example tests run several training subprocesses in sequence.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.github/workflows/pr_tests.yml

@@ -136,6 +136,8 @@ jobs:
 
     - name: Run fast PyTorch Pipeline CPU tests
       if: ${{ matrix.config.framework == 'pytorch_pipelines' }}
+      env:
+        PYTEST_TIMEOUT: 300
       run: |
         pytest -n 8 --max-worker-restart=0 --dist=loadfile \
           -k "not Onnx" \
@@ -152,6 +154,8 @@ jobs:
 
     - name: Run example PyTorch CPU tests
       if: ${{ matrix.config.framework == 'pytorch_examples' }}
+      env:
+        PYTEST_TIMEOUT: 300
       run: |
         uv pip install ".[training]"
         pytest -n 4 --max-worker-restart=0 --dist=loadfile \

tests/others/test_utils.py

@@ -175,7 +175,7 @@ class TestDeprecate:
         with pytest.warns(FutureWarning) as warning:
             deprecate(("deprecated_arg", self.higher_version, "This message is better!!!"), standard_warn=False)
         assert str(warning[0].message) == "This message is better!!!"
-        assert "diffusers/tests/others/test_utils.py" in warning[0].filename
+        assert "tests/others/test_utils.py" in warning[0].filename
 
     def test_deprecate_testing_utils_module(self):
         import diffusers.utils.testing_utils