v2.4.2 Dependency updates and Initial Preservation work

What's Changed

• Create structure for BagIt bags by @jazairi in #863
• Optional settings for test runs by @JPrevost in #869
• Initial work on the preservation metadata csv by @JPrevost in #867
• updates deps by @JPrevost in #874
• Update listen: 3.7.0 → 3.7.1 (patch) by @depfu in #875
• updates deps by @JPrevost in #881
• Update sentry-ruby: 4.8.3 → 5.0.1 (major) by @depfu in #880
• Update pg: 1.2.3 → 1.3.0 (minor) by @depfu in #878

Full Changelog: v.2.4.1...v2.4.2