Strata v2.0.0-alpha.93

• Update for dependency upgrades.
• Upgrade interrupt to 11.0.0-alpha.18.
• Upgrade operation to 6.0.0-alpha.6.
• Upgrade writeahead to 0.0.25.
• Upgrade fracture to 0.3.0-alpha.47.
• Upgrade extant to ^2.0.0-alpha.0.
• Upgrade destructible to 7.0.0-alpha.48.
• Upgrade rescue to 7.0.0-alpha.11.
• Upgrade journalist to 0.1.22.
• Upgrade turnstile to 6.0.0-alpha.57.

Closes #762.