fix: fetch a failed proposal tally from proposal.FinalTallyResult in the gprc query

[170210]

Description

The TallyResult() is used to fetch the tally result from a proposal, in which the case when a proposal fails does not provide the correct information as this case has been branched into the default case. This pr cherry-pick the following pr:

• https://github.com/cosmos/cosmos-sdk/pull/19725

Motivation and context

How has this been tested?

Screenshots (if appropriate):

Checklist:

• [x] I followed the contributing guidelines and code of conduct.
• [x] I have added a relevant changelog to CHANGELOG.md
• [x] I have added tests to cover my changes.
• [ ] I have updated the documentation accordingly.
• [ ] I have updated API documentation client/docs/swagger-ui/swagger.yaml

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:white_check_mark: 170210
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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 70.43%. Comparing base (1038a39) to head (39d1651).

Additional details and impacted files

[](https://app.codecov.io/gh/Finschia/finschia-sdk/pull/1304?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Finschia) ```diff @@ Coverage Diff @@ ## main #1304 +/- ## ======================================= Coverage 70.42% 70.43% ======================================= Files 643 643 Lines 54730 54730 ======================================= + Hits 38546 38547 +1 + Misses 14011 14010 -1 Partials 2173 2173 ``` | [Files](https://app.codecov.io/gh/Finschia/finschia-sdk/pull/1304?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Finschia) | Coverage Δ | | |---|---|---| | [x/gov/keeper/grpc\_query.go](https://app.codecov.io/gh/Finschia/finschia-sdk/pull/1304?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Finschia#diff-eC9nb3Yva2VlcGVyL2dycGNfcXVlcnkuZ28=) | `76.38% <100.00%> (ø)` | | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/Finschia/finschia-sdk/pull/1304/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Finschia)