Added dependency to setup.py

apps/cli/executables/vulture/setup.py

@@ -7,6 +7,7 @@ from setuptools import setup
 VERSION = open('src/vulture/_version.py').readlines()[-1].split()[-1].strip("\"'")
 README = Path('README.md').read_text()
 
+requires = ['pendulum']
 tests_require = [
     'pytest>=5.4,<6.0'
 ]
@@ -19,7 +20,7 @@ setup(
     author_email='dms-ssa@nrao.edu',
     url='TBD',
     license="GPL",
-    # install_requires=requires,
+    install_requires=requires,
     tests_require=tests_require,
     keywords=[],
     packages=['vulture'],