Double number of pytest workers

Author: SamWilsn

tox.ini

@@ -22,7 +22,7 @@ extras =
 commands =
     pytest \
         -m "not slow" \
-        -n auto --maxprocesses 5 \
+        -n auto --maxprocesses 10 \
         --cov-config=pyproject.toml \
         --cov=ethereum \
         --cov-report=term \
@@ -43,7 +43,7 @@ commands =
         --show-capture=no \
         --disable-warnings \
         -m "not slow" \
-        -n auto --maxprocesses 2 \
+        -n auto --maxprocesses 5 \
         --ignore-glob='tests/fixtures/*' \
         --basetemp="{temp_dir}/pytest"