feat: replace with snapshot/*.json diffing

[boredland]

• will act as a drop-in replacement for repos with snapshot/*.json present

[github-actions]

♻️ Gas report

Path	Value
mocks/some.json
full amount; receiver: ->enableCollateral	↑7% (+10001) 154,838
full amount; sender: ->disableCollateral;	↓10% (-10000) 93,274
partial amount; sender: collateralEnabled;	↓100% (-103180) 123
full amount; sender: ->disableCollateral; receiver: ->enableCollateral	145,016

🔕 Unchanged

Path	Value
mocks/some.json
full amount; sender: ->disableCollateral; receiver: dirty, ->enableCollateral	133,059
full amount; sender: collateralDisabled	103,095
partial amount; sender: collateralDisabled;	103,095
partial amount; sender: collateralDisabled; receiver: ->enableCollateral	144,837
partial amount; sender: collateralEnabled; receiver: ->enableCollateral	145,045
mocks/someOther.json
full amount; receiver: ->enableCollateral	144,837
full amount; sender: ->disableCollateral;	103,274
full amount; sender: ->disableCollateral; receiver: ->enableCollateral	145,016
full amount; sender: ->disableCollateral; receiver: dirty, ->enableCollateral	133,059
full amount; sender: collateralDisabled	103,095
partial amount; sender: collateralDisabled;	103,095
partial amount; sender: collateralDisabled; receiver: ->enableCollateral	144,837
partial amount; sender: collateralEnabled;	103,303
partial amount; sender: collateralEnabled; receiver: ->enableCollateral	145,045