v2.21.0

• 18d74f6 feat(upgrades): Recover quarantined Eris claim to Treasury in v2.21 (#2791)
• d505fe1 refactor(upgrades): Consolidate v2.21 tests and remove custom gas limits
• ae8cca3 refactor(upgrades): Let Eris settle recovery without runtime assertions
• ec8f88a fix(upgrades): Contain v2.21 custom failures in cached handler methods
• 7d4c8f2 feat(upgrades): Recover quarantined Eris claim to Treasury in v2.21
• 1dcdc05 build(wasm): Pin published WasmVM v1.13.1 libraries