Add 0.43 CLI JSON migrate command

[amaury1093]

Description

closes: #8822

To Test:

• run a 0.42 node for a couple of blocks
• stop the node, run simd export > test.json
• on this branch, run simd migrate v0.43 test.json

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• Targeted PR against correct branch (see CONTRIBUTING.md)
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer
• Review Codecov Report in the comment section below once CI passes

[orijbot]

Benchmark finished. See the result: https://github.orijtech.com/benchmark/result?id=3705c0e0b7d54f9b805cfb526292b1e5

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=68a2a66137fe5277e2c446d033ad2e446f1016f4

[codecov]

Codecov Report

Merging #8880 (8d9b776) into master (5bd93bf) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 8d9b776 differs from pull request most recent head 2f31b0d. Consider uploading reports for the commit 2f31b0d to get more accurate results

@@            Coverage Diff             @@
##           master    #8880      +/-   ##
==========================================
- Coverage   59.27%   59.25%   -0.03%     
==========================================
  Files         571      572       +1     
  Lines       31827    31813      -14     
==========================================
- Hits        18867    18850      -17     
- Misses      10757    10761       +4     
+ Partials     2203     2202       -1     

Impacted Files	Coverage Δ
x/genutil/client/cli/migrate.go	68.42% <100.00%> (ø)
x/gov/legacy/v043/json.go	100.00% <100.00%> (ø)
x/gov/legacy/v043/store.go	85.71% <100.00%> (+1.09%)	⬆️
x/auth/vesting/module.go	52.17% <0.00%> (-4.35%)	⬇️
x/upgrade/module.go	60.86% <0.00%> (-4.35%)	⬇️
x/mint/module.go	52.77% <0.00%> (-2.78%)	⬇️
x/auth/module.go	51.35% <0.00%> (-2.71%)	⬇️
x/crisis/module.go	56.75% <0.00%> (-2.71%)	⬇️
x/upgrade/keeper/keeper.go	74.22% <0.00%> (-2.50%)	⬇️
x/staking/module.go	59.52% <0.00%> (-2.39%)	⬇️
... and 10 more

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=8dd825b81e8977a756c651e390e55e0848c07c73

[orijbot]

Benchmark finished. See the result: https://github.orijtech.com/benchmark/result?id=8e74cd1e82144091a9733749a42dfb9d

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=26263696dfdc8bbd6570860e8b3bd120d3f3cdff

[robert-zaremba]

utACK. Left one question.

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=2e69bb2b1cab561deaf07f73472ff9e0a07898b5

[orijbot]

Benchmark finished. See the result: https://github.orijtech.com/benchmark/result?id=d9a7604fefbd4750a753e8ff56909ef2

[orijbot]

Benchmark beginning. Status page: https://github.orijtech.com/benchmark/status?commit=8d9b776c56cf2902cf44d9cedf416efb97c9d7e9

[orijbot]

Benchmark finished. See the result: https://github.orijtech.com/benchmark/result?id=449186f4624d44778638f24109a87563

[alessio]

Looks go. ACK'd. I couldn't test it, @AmauryM did you or anyone test this manually?

[amaury1093]

did you or anyone test this manually?

I ran the following:

• Take gaia v4, create a local node, run for a couple of blocks
• stop the node, run gaiad export > test.json
• run simd migrate v0.43 test.json (simd and gaiad are genesis-compatible)
• works

It doesn't test all migration paths (it only ran for a few blocks), more thorough testing is desirable, but requires a testnet probably.