Pass deps to py_test in py_test_module_list

Bazel macro py_test_module_list takes a `deps` argument, but completely
ignores it instead of passes it to `native.py_test`. Fixing that as we
are going to use deps of py_test_module_list in BUILD in later changes.

cpp/BUILD.bazel depends on the broken behaviour: it deps-on a cc_library
from a py_test, which isn't working, see upstream issue:
bazelbuild/bazel#701.
This is fixed by simply removing the (non-working) deps.

bazel/python.bzl

@@ -3,7 +3,7 @@ load("@bazel_skylib//lib:paths.bzl", "paths")
 # py_test_module_list creates a py_test target for each
 # Python file in `files`
 
-def py_test_module_list(files, size, deps, extra_srcs, name_suffix="", **kwargs):
+def py_test_module_list(files, size, deps, extra_srcs=[], name_suffix="", **kwargs):
     for file in files:
         # remove .py
         name = paths.split_extension(file)[0] + name_suffix
@@ -14,6 +14,7 @@ def py_test_module_list(files, size, deps, extra_srcs, name_suffix="", **kwargs)
             size = size,
             main = file,
             srcs = extra_srcs + [file],
+            deps = deps,
             **kwargs
         )
 

cpp/BUILD.bazel

@@ -321,7 +321,5 @@ py_test_module_list(
         "small_size_python_tests",
         "team:core",
     ],
-    deps = [
-        ":ray_api",
-    ],
+    deps = [],
 )