Bump cluster applications CI template

What does this MR do?

gitlab-org/cluster-integration/cluster-applications@v0.29.0...v0.33.0

• Update GitLab Runner Helm Chart to 0.21.1 (c4a799e)
• Update GitLab Runner Helm Chart to 0.21.0 (7976fba)
• Update GitLab Runner Helm Chart to 0.20.1 (eae2c33)
• Update GitLab Runner Helm Chart to 0.20.0 (a3b7e4a)

Screenshots

Successful upgrade of runner - https://staging.gitlab.com/hello-staging/hello-staging-cluster-management/-/jobs/37956705:

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

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