FIX-modin-project#322: Disable actor tests for Ray

Signed-off-by: Igoshev, Iaroslav <[email protected]>

.github/workflows/ci.yml

@@ -59,7 +59,7 @@ jobs:
         backend: ["ray", "mpi", "dask", "pymp", "pyseq"]
     env:
       UNIDIST_BACKEND: ${{matrix.backend}}
-    name: test-ubuntu (backend ${{matrix.backend}}, python ${{matrix.python-version}})
+    name: test-${{ matrix.os }} (backend ${{matrix.backend}}, python ${{matrix.python-version}})
     steps:
       - uses: actions/checkout@v2
         with:
@@ -77,10 +77,13 @@ jobs:
         run: |
           conda info
           conda list
+      # We disable actor tests for Ray for now because
+      # they hang in CI for some reason but pass locally.
+      # TODO: Find a solution for https://github.com/modin-project/unidist/issues/322
       - run: python -m pytest unidist/test/test_actor.py
-        if: matrix.backend != 'mpi'
+        if: matrix.backend != 'mpi' && matrix.backend != 'ray'
       - run: python -m pytest unidist/test/test_async_actor.py
-        if: matrix.backend != 'mpi'
+        if: matrix.backend != 'mpi' && matrix.backend != 'ray'
       - run: python -m pytest unidist/test/test_task.py
         if: matrix.backend != 'mpi'
       - run: python -m pytest unidist/test/test_general.py