Filedeck v0.3.9

What's Changed

• TASKS.md: hub rollout outage (2.FD-14, 2.FD-15) by @ThomasMcFarlane in #56
• fix(chart): zero-downtime rollouts for hub and agents (2.FD-15) by @ThomasMcFarlane in #57
• chore(release): prepare v0.3.9 (2.FD-16) by @ThomasMcFarlane in #58

Full Changelog: v0.3.8...v0.3.9