Switch to SDK Fork to Address Distribution Bug

[shellvish]

Context and purpose of the change

Switches to a forked version of Cosmos SDK v0.47.4 in order to solve a Distribution bug with SDK v0.47.x.

This shows the full set of changes to the SDK (1 line change). Conceptually, we are allowing a 5 STRD margin of error on a distribution sanity-check.

In practice, this will only affect delegators to one specific validator, and this change should get removed after we can more properly test a permanent fix.

I've verified that only one validator is affected by this bug, and the 5 STRD should fully unblock this validator until the permanent fix is implemented.

Example Responses

This query should throw an error on the current Stride mainnet, as it surfaces the panic in the Distribution module.
strided q distribution validator-distribution-info stridevaloper1tlz6ksce084ndhwlq2usghamvh0dut9q4z2gxd
This is the specific error that's thrown on mainnet:

❯ stridedm q distribution validator-distribution-info stridevaloper1tlz6ksce084ndhwlq2usghamvh0dut9q4z2gxd
Error: rpc error: code = Unknown desc = calculated final stake for delegator stride1tlz6ksce084ndhwlq2usghamvh0dut9qkhw52g greater than current stake
	final stake:	1299740.017859101302827268
	current stake:	1299610.045783281703011063: panic

This is the response for the sample query AFTER this change (to the modified SDK) has been made

❯ strided q distribution validator-distribution-info stridevaloper1tlz6ksce084ndhwlq2usghamvh0dut9q4z2gxd
commission:
- amount: "2504749330704918944.564117224352139868"
  denom: staevmos
- amount: "23237153505572987.265384893681320834"
  denom: stinj
- amount: "520385.142521074943330305"
  denom: stuatom
- amount: "247990.101336654014465285"
  denom: stucmdx
- amount: "251313.519274144872194249"
  denom: stujuno
- amount: "158167.775327994163030678"
  denom: stuluna
- amount: "1185768.021759805497729134"
  denom: stuosmo
- amount: "7194170.056717414847297582"
  denom: stustars
- amount: "2197505.563436254948222869"
  denom: stuumee
- amount: "30185402.326312111961059306"
  denom: ustrd
operator_address: stride1tlz6ksce084ndhwlq2usghamvh0dut9qkhw52g
self_bond_rewards:
- amount: "7290978248597596.721816683607460603"
  denom: staevmos
- amount: "67260912126102.494009226432357734"
  denom: stinj
- amount: "1531.298971156388797561"
  denom: stuatom
- amount: "721.807978984898090003"
  denom: stucmdx
- amount: "737.535825212068224782"
  denom: stujuno
- amount: "463.614519164498308594"
  denom: stuluna
- amount: "3486.519471965841569394"
  denom: stuosmo
- amount: "21433.923898688915284018"
  denom: stustars
- amount: "6396.940616447205740492"
  denom: stuumee
- amount: "80161.671366798448170474"
  denom: ustrd

[sampocs]

lgtm! Great job tracking this down, this was a tricky one!!