chore(deps): update gunicorn requirement from <24,>=20 to >=23.0.0,<24 (#1504)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/adapter.txt

@@ -27,5 +27,5 @@ starlette>=0.19.1,<0.45; python_version<"3.9"
 starlette>=0.49.3,<1; python_version>="3.9"
 tornado>=6,<7
 uvicorn<1                                # The oldest version can vary among Python runtime versions
-gunicorn>=20,<24
+gunicorn>=23.0.0,<24
 websocket_client>=1.2.3,<2               # Socket Mode 3rd party implementation