Upgrade task_list gem to 2.3.3

What does this MR do and why?

Upgrade the deckar01/task_list gem to 2.3.3 to pick up a bug fix for https://gitlab.com/gitlab-org/gitlab/-/issues/418811

Gem diff: https://my.diffend.io/gems/deckar01-task_list/2.3.2/2.3.3

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to https://gitlab.com/gitlab-org/gitlab/-/issues/418811