feat: iavl async pruning (backport #593)

[mergify]

Description

• introduce new interfaces SetCommitting and UnsetCommitting to block the pruning on the iavl side

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Author Checklist

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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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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)

Summary by CodeRabbit

• New Features

  • Implemented asynchronous pruning to enhance performance.
  • Added functionality to mark store states as committing or not, improving transaction handling and state management.

• Tests

  • Introduced delays in test scenarios to better simulate consensus processes and ensure accurate pruning behavior during commits.

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This is an automatic backport of pull request #593 done by [Mergify](https://mergify.com).