Fix pipeline 1087792 due to upstream changes on CommonMark

What does this MR do and why?

Failed pipeline: https://jihulab.com/gitlab-cn/gitlab/-/pipelines/1087792

Failed job: https://jihulab.com/gitlab-cn/gitlab/-/jobs/7166290

Error log:

undefined local variable or method `render_options_sourcepos' for #<Banzai::Filter::MarkdownEngines::CommonMark:0x00007fdb70be5b88

Changes from upstream commit: https://gitlab.com/gitlab-org/gitlab/-/commit/3484c967f6bae52431d9c769e464f8cbd7dd4022

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