Bump gunicorn from 20.1.0 to 21.2.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 20.1.0 to 21.2.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](https://github.com/benoitc/gunicorn/compare/20.1.0...21.2.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

poetry.lock

@@ -2157,17 +2157,17 @@ files = [
 
 [[package]]
 name = "gunicorn"
-version = "20.1.0"
+version = "21.2.0"
 description = "WSGI HTTP Server for UNIX"
 optional = false
 python-versions = ">=3.5"
 files = [
-    {file = "gunicorn-20.1.0-py3-none-any.whl", hash = "sha256:9dcc4547dbb1cb284accfb15ab5667a0e5d1881cc443e0677b4882a4067a807e"},
-    {file = "gunicorn-20.1.0.tar.gz", hash = "sha256:e0a968b5ba15f8a328fdfd7ab1fcb5af4470c28aaf7e55df02a99bc13138e6e8"},
+    {file = "gunicorn-21.2.0-py3-none-any.whl", hash = "sha256:3213aa5e8c24949e792bcacfc176fef362e7aac80b76c56f6b5122bf350722f0"},
+    {file = "gunicorn-21.2.0.tar.gz", hash = "sha256:88ec8bff1d634f98e61b9f65bc4bf3cd918a90806c6f5c48bc5603849ec81033"},
 ]
 
 [package.dependencies]
-setuptools = ">=3.0"
+packaging = "*"
 
 [package.extras]
 eventlet = ["eventlet (>=0.24.1)"]
@@ -5656,4 +5656,4 @@ testing = ["coverage (>=5.0.3)", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "7b09b9b8623090b0ab8eb56cfa1ad2e2ae9695b4a52703e161b1b67f48541e42"
+content-hash = "0f3ffb70e4ca26a0c3ccc58690a3835d1e744fdeb46694781c1ea9bc49f43d41"

pyproject.toml

@@ -55,7 +55,7 @@ django-debug-toolbar = "^4.1.0"
 django-extensions = "^3.2.1"
 django-coverage-plugin = "^3.0.0"
 pytest-django = "^4.5.2"
-gunicorn = "^20.1.0"
+gunicorn = "^21.2.0"
 sentry-sdk = "^1.25.1"
 django-anymail = {extras = ["mailgun"], version = "^10.0"}
 django-polymorphic = "^3.1.0"