Cadence tests should retry (#19313)

With these giant 500+ op tests we often will get a flakey 1/500 failure.
Just adding retries to make this a little less noisy.

Failure is something like FAILED
backends/cadence/aot/tests/test_replace_ops_passes.py::TestReplaceOpsPasses::test_replace_conv2d_with_linear
- AssertionError: Pass validation failed for pass
ReplaceTrivialConvWithLinear. Output tensor 0 differs by max
1.525879e-05. Expected rtol=2e-05, atol=1e-06. Original output:
tensor([[[[ 6.5604]],

Author: JacobSzwejbka

.github/workflows/_test_cadence.yml

@@ -45,9 +45,9 @@ jobs:
 
         ./install_requirements.sh > /dev/null
         pip install -e . --no-build-isolation > /dev/null
-        pip install beartype later pyre_extensions pytest-xdist
+        pip install beartype later pyre_extensions pytest-rerunfailures==15.1 pytest-xdist
 
-        python -m pytest backends/cadence/aot/tests/ -v -n auto
+        python -m pytest backends/cadence/aot/tests/ -v -n auto --reruns 2 --reruns-delay 1
 
   test-ops:
     uses: pytorch/test-infra/.github/workflows/linux_job_v2.yml@main
@@ -66,12 +66,12 @@ jobs:
 
         ./install_requirements.sh > /dev/null
         pip install -e . --no-build-isolation > /dev/null
-        pip install beartype later pyre_extensions pytest-xdist
+        pip install beartype later pyre_extensions pytest-rerunfailures==15.1 pytest-xdist
 
         # Use the pre-built runner from the build job
         mkdir -p cmake-out/backends/cadence
         cp "${RUNNER_ARTIFACT_DIR}/cadence_runner" cmake-out/backends/cadence/cadence_runner
         chmod +x cmake-out/backends/cadence/cadence_runner
 
         export PYTHONPATH="${PYTHONPATH:-}:$(pwd)/backends/cadence/utils/FACTO"
-        python -m pytest examples/cadence/operators/ -v -n auto
+        python -m pytest examples/cadence/operators/ -v -n auto --reruns 2 --reruns-delay 1