Unpin ingress-controller image version, bump ingress chart to 1.22.1

What does this MR do?

Removes version pinning for ingress GitLab Managed App.

Previous version was pinned to 0.10.2, this will now install the latest version.

Also bumped the chart to 1.22.1 to fix an outstanding issue with modsecurity

When tested this upgraded to 0.21.0 and seemed to work as expected, but I'm unsure why it didn't fetch the latest, which appears to be 0.26.1.

QA List

0.21.0 (chart 1.1.2)

• User application routing functions as expected
• Nginx application metrics reporting as expected
• Modsecurity reporting as expected (FAILURE: see bug https://github.com/kubernetes/ingress-nginx/pull/4080, fixed in later versions)
• Cert Manager working as expected
• Ingress uninstallation cleans up relevant objects

0.25.0 (chart 1.22.1)

• User application routing functions as expected
• Nginx application metrics reporting as expected
• Modsecurity reporting as expected
• Cert Manager working as expected
• Ingress uninstallation cleans up relevant objects

Closes #28492 (closed)

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Performance and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team