chore: prepare for GA release (#555)

Author: jackwotherspoon

README.md

@@ -11,8 +11,6 @@
 [![pypi](https://img.shields.io/pypi/v/cloud-sql-python-connector)](https://pypi.org/project/cloud-sql-python-connector)
 [![python](https://img.shields.io/pypi/pyversions/cloud-sql-python-connector)](https://pypi.org/project/cloud-sql-python-connector)
 
-**Warning**: This project is currently in _beta_. Please [open an issue](https://github.com/GoogleCloudPlatform/cloud-sql-python-connector/issues/new/choose) if you would like to report a bug or documentation issue, request a feature, or have a question.
-
 The _Cloud SQL Python Connector_ is a Cloud SQL connector designed for use with the
 Python language. Using a Cloud SQL connector provides the following benefits:
 * **IAM Authorization:** uses IAM permissions to control who/what can connect to

setup.py

@@ -41,7 +41,7 @@
     exec(fp.read(), version)
 version = version["__version__"]
 
-release_status = "Development Status :: 4 - Beta"
+release_status = "Development Status :: 5 - Production/Stable"
 core_dependencies = [
     "aiohttp",
     "cryptography>=38.0.3",
@@ -62,8 +62,6 @@
     classifiers=[
         release_status,
         "Intended Audience :: Developers",
-        "Development Status :: 4 - Beta",
-        "Intended Audience :: Developers",
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3.7",