v2.17.0

What's Changed

• CI: Fix Docker dependency by @fushar in #625
• CI: Fix Docker dependency (pt 2) by @fushar in #626
• CI: Update actions to use Node 20 by @fushar in #627
• contest: don't use transactional db in scheduled scoreboard updater by @fushar in #628
• submissions: optimize regrade mechanism by @fushar in #629
• contest: add loading state to regrade all button by @fushar in #630
• grader: don't take job if queue is full by @fushar in #631
• grading: update submission grading engine when regraded by @fushar in #632
• grader: try to clean up Isolate box if already exists when init-ed by @fushar in #633

Full Changelog: v2.16.0...v2.17.0