Use custom video image for Selenoid

What does this MR do and why?

Adds a custom image for video recording for Selenoid and defaults that and the chrome browser image.

Counterpart MR: gitlab!120672 (merged)

Part of: https://gitlab.com/gitlab-com/gitlab-OKRs/-/work_items/2299, gitlab-org/quality/quality-engineering/team-tasks#1526 (closed)

MR acceptance checklist

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