chor: Update repo to say beta release instead of alpha (#691)

vi3k6i5 · web-flow · commit 2144d09901b9 · 2021-07-30T09:32:49.000+05:30
* fix: Bump version number after 2.2.1b2 release

* Update setup.py

Current release is beta so updating the same in setup.py
diff --git a/setup.py b/setup.py
@@ -16,7 +16,7 @@
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'
 # 'Development Status :: 5 - Production/Stable'
-release_status = "Development Status :: 3 - Alpha"
+release_status = "Development Status :: 4 - Beta"
 dependencies = ["sqlparse >= 0.3.0", "google-cloud-spanner >= 3.0.0"]
 extras = {
     "tracing": [
