perf: optimize store.write

[bradyjoestar]

Description

#12493
Closes: #XXXX

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Author Checklist

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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

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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 #12494 (bd778f6) into main (b10fa1d) will decrease coverage by 0.04%.
The diff coverage is 100.00%.

❗ Current head bd778f6 differs from pull request most recent head 119bf14. Consider uploading reports for the commit 119bf14 to get more accurate results

@@            Coverage Diff             @@
##             main   #12494      +/-   ##
==========================================
- Coverage   65.59%   65.54%   -0.05%     
==========================================
  Files         699      687      -12     
  Lines       72557    71709     -848     
==========================================
- Hits        47592    47000     -592     
+ Misses      22275    22057     -218     
+ Partials     2690     2652      -38     

Impacted Files	Coverage Δ
store/cachekv/store.go	79.11% <100.00%> (+0.16%)	⬆️
crypto/keys/internal/ecdsa/privkey.go	81.13% <0.00%> (-1.89%)	⬇️
cosmovisor/cmd/cosmovisor/run.go
cosmovisor/args.go
cosmovisor/cmd/cosmovisor/init.go
cosmovisor/cmd/cosmovisor/help.go
cosmovisor/scanner.go
cosmovisor/logger.go
cosmovisor/cmd/cosmovisor/version.go
... and 5 more