skip single_cpu tests

Author: WillAyd

.github/workflows/unit-tests.yml

@@ -336,15 +336,16 @@ jobs:
         PYTEST_TARGET: 'pandas'
         ASAN_OPTIONS: detect_leaks=0  # leak detection in Python not yet working
 
-    - name: Test (single_cpu)
-      uses: ./.github/actions/run-tests
-      with:
-        preload: LD_PRELOAD=$(gcc -print-file-name=libasan.so)
-      env:
-        PATTERN: "single_cpu and not known_ub"
-        PYTEST_WORKERS: 0
-        PYTEST_TARGET: 'pandas'
-        ASAN_OPTIONS: detect_leaks=0 # leak detection in Python not yet working
+    # Skipping single CPU tests for now - see pytest GH issue 641 for error
+    #- name: Test (single_cpu)
+    #  uses: ./.github/actions/run-tests
+    #  with:
+    #    preload: LD_PRELOAD=$(gcc -print-file-name=libasan.so)
+    #  env:
+    #    PATTERN: "single_cpu and not known_ub"
+    #    PYTEST_WORKERS: 0
+    #    PYTEST_TARGET: 'pandas'
+    #    ASAN_OPTIONS: detect_leaks=0 # leak detection in Python not yet working
 
   python-dev:
     # This job may or may not run depending on the state of the next