chore: add author

Author: tswast

setup.py

@@ -37,6 +37,10 @@
     version=version,
     description=description,
     long_description=readme,
+    author="Ibis Contributors",
+    author_email=None,
+    maintainer="Tim Swast",
+    maintainer_email="swast@google.com",
     url="https://github.com/ibis-project/ibis-bigquery",
     packages=setuptools.find_packages(),
     python_requires=">=3.7",