fix setuptools deprecation (#3540)

FIX:

#UserWarning: Unknown distribution option: 'tests_require'

Author: mosfet80

moveit_configs_utils/setup.py

@@ -18,7 +18,11 @@
     maintainer_email="[email protected]",
     description="Python library for loading MoveIt config parameters in launch files",
     license="BSD",
-    tests_require=["pytest"],
+    extras_require={
+        "test": [
+            "pytest",
+        ],
+    },
     entry_points={
         "console_scripts": [],
     },