🧪 Disable pytest-xdist in CI on Ubuntu ARM

Author: webknjaz

.github/workflows/reusable-tests.yml

@@ -269,6 +269,11 @@ jobs:
         --parallel-live
         --skip-missing-interpreters false
         -qq
+        ${{
+          contains(inputs.runner-vm-os, 'arm')
+          && '-- -n0'
+          || ''
+        }}
     - name: Produce markdown test summary from JUnit
       if: always()
       uses: test-summary/[email protected]
@@ -286,6 +291,7 @@ jobs:
         --skip-pkg-install
         --
         --no-cov -vvvvv --lf
+        -n0
         && exit 1
       shell: bash
     - name: Send coverage data to Codecov