[tox] don't install the package for the format task

dcermak · dcermak · commit 93bb2e4ef3b7 · 2025-01-16T11:13:11.000+01:00
It just takes time for no benefit
diff --git a/tox.ini b/tox.ini
@@ -47,6 +47,7 @@ commands =
     ruff check
 
 [testenv:format]
+package = skip
 allowlist_externals = ./format.sh
 deps =
     ruff
