CI/TST: Use worksteal over loadfile for pytest-xdist (pandas-dev#57737)

* CI/TST: Use worksteal over loadfile for pytest-xdist

* Undo pin

* Specify in filterwarnings

* Move pytest-cov

* Remove old try

* Looks like pytest-cov is on conda forge now

Author: mroeschke

ci/deps/actions-311-numpydev.yaml

@@ -13,10 +13,7 @@ dependencies:
   # test dependencies
   - pytest>=7.3.2
   - pytest-cov
-  # Once pytest-cov > 4 comes out, unpin this
-  # Right now, a DeprecationWarning related to rsyncdir
-  # causes an InternalError within pytest
-  - pytest-xdist>=2.2.0, <3
+  - pytest-xdist>=2.2.0
   - hypothesis>=6.46.1
 
   # pandas dependencies

ci/run_tests.sh

@@ -10,7 +10,7 @@ echo PYTHONHASHSEED=$PYTHONHASHSEED
 
 COVERAGE="-s --cov=pandas --cov-report=xml --cov-append --cov-config=pyproject.toml"
 
-PYTEST_CMD="MESONPY_EDITABLE_VERBOSE=1 PYTHONDEVMODE=1 PYTHONWARNDEFAULTENCODING=1 pytest -r fE -n $PYTEST_WORKERS --dist=loadfile $TEST_ARGS $COVERAGE $PYTEST_TARGET"
+PYTEST_CMD="MESONPY_EDITABLE_VERBOSE=1 PYTHONDEVMODE=1 PYTHONWARNDEFAULTENCODING=1 pytest -r fE -n $PYTEST_WORKERS --dist=worksteal $TEST_ARGS $COVERAGE $PYTEST_TARGET"
 
 if [[ "$PATTERN" ]]; then
   PYTEST_CMD="$PYTEST_CMD -m \"$PATTERN\""