Don’t use keyword argument for TestEnvironment. (#954)

python/config_settings/transition.bzl

diff --git a/python/config_settings/transition.bzl b/python/config_settings/transition.bzl
index e87e2c9..35ba9a8 100644
--- a/python/config_settings/transition.bzl
+++ b/python/config_settings/transition.bzl
@@ -62,7 +62,7 @@
         # RunEnvironmentInfo is not exposed in Bazel < 5.3.
         # https://github.com/bazelbuild/rules_python/issues/901
         # https://github.com/bazelbuild/bazel/commit/dbdfa07e92f99497be9c14265611ad2920161483
-        testing.TestEnvironment(environment = env),
+        testing.TestEnvironment(env),
     ]
     return providers