Updated metadata to use group email address (#1660)

Author: technige

setup.py

@@ -50,10 +50,8 @@
     long_description=long_description,
     long_description_content_type="text/x-rst",
     version=__versionstr__,
-    author="Honza Král",
-    author_email="honza.kral@gmail.com",
-    maintainer="Seth Michael Larson",
-    maintainer_email="seth.larson@elastic.co",
+    author="Elastic Client Library Maintainers",
+    author_email="client-libs@elastic.co",
     packages=find_packages(where=".", exclude=("tests*",)),
     python_requires=">=3.6",
     classifiers=[