feat: authz add query all grants by granter

[aleem1314]

Description

Closes: #9966

---

Author Checklist

All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• included the necessary unit and integration tests
• added a changelog entry to CHANGELOG.md
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

Reviewers Checklist

All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.

I have...

• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

[codecov]

Codecov Report

Merging #10326 (c6236d2) into master (7e6151e) will increase coverage by 0.11%.
The diff coverage is 92.35%.

❗ Current head c6236d2 differs from pull request most recent head 8f68775. Consider uploading reports for the commit 8f68775 to get more accurate results

@@            Coverage Diff             @@
##           master   #10326      +/-   ##
==========================================
+ Coverage   64.15%   64.26%   +0.11%     
==========================================
  Files         572      572              
  Lines       53985    54142     +157     
==========================================
+ Hits        34632    34795     +163     
+ Misses      17377    17366      -11     
- Partials     1976     1981       +5     

Impacted Files	Coverage Δ
x/authz/keeper/grpc_query.go	70.29% <67.56%> (-1.58%)	⬇️
x/authz/client/testutil/grpc.go	98.26% <100.00%> (+0.74%)	⬆️
x/authz/client/testutil/query.go	100.00% <100.00%> (ø)
x/distribution/simulation/operations.go	90.27% <0.00%> (+9.72%)	⬆️

[likhita-809]

lgtm, just small nits.

[atheeshp]

looks good