py-torch: avoid avx512 gcc bug

spack.yaml

@@ -39,7 +39,7 @@ spack:
     - pythia8@8.306 +fastjet
     - python@3.10.8
     - py-boto3@1.18.12
-    - py-minkowskiengine@0.5.4
+    - py-minkowskiengine@0.5.4 cflags="-Wno-error=maybe-uninitialized -Wno-error=uninitialized -Wno-error=restrict" cxxflags="-Wno-error=maybe-uninitialized -Wno-error=uninitialized -Wno-error=restrict" # https://github.com/pytorch/FBGEMM/issues/1094
     - py-numpy@1.23.4
     - py-pip@22.2.2
     - py-toml@0.10.2