Bump gunicorn from 21.2.0 to 22.0.0 (#323)

* Bump gunicorn from 21.2.0 to 22.0.0

Bumps [gunicorn](https://github.com/benoitc/gunicorn) from 21.2.0 to 22.0.0.
- [Release notes](https://github.com/benoitc/gunicorn/releases)
- [Commits](benoitc/gunicorn@21.2.0...22.0.0)

---
updated-dependencies:
- dependency-name: gunicorn
  dependency-type: direct:production
...

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

* Update README.md

Force build

* auto patch increment

* auto patch increment

* Update README.md

Remove force build

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mark Price <pricem14pc@users.noreply.github.com>
Co-authored-by: ras-rm-pr-bot <rasrm.team@ons.gov.uk>

_infra/helm/collection-instrument/Chart.yaml

@@ -14,9 +14,9 @@ type: application
 
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 3.0.28
+version: 3.0.29
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.
-appVersion: 3.0.28
+appVersion: 3.0.29