build(NoTicket): bump pytest-xdist from 2.5.0 to 3.8.0 (#465)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Florian Strübe <florian@firebolt.io>

Author: dependabot[bot]

setup.cfg

@@ -63,7 +63,7 @@ dev =
     pytest-mock==3.15.1
     pytest-timeout==2.1.0
     pytest-trio==0.8.0
-    pytest-xdist==2.5.0
+    pytest-xdist==3.8.0
     trio-typing[mypy]>=0.6,<0.11
     types-cryptography==3.3.23.2
 docs =