Don't run the deps-tests by default

tests/deps/deps_test.py

@@ -524,7 +524,6 @@ add_cases(
 ##        ##    ## ##    ##
 ##         ######   ######
 """
-CASES = []
 add_cases(
     'pcg-cpp', 'pcg/pcg-cpp', ['auto'], r'''
     #include <pcg_random.hpp>
@@ -538,7 +537,7 @@ add_cases(
     ''')
 
 
-# @pytest.mark.deps_test
+@pytest.mark.deps_test
 @pytest.mark.parametrize('case', CASES, ids=[c.dep for c in CASES])
 def test_dep(case: DepsCase, dds: DDS) -> None:
     case.setup_root(dds)