chore: update dependency casbin to ^5.30.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
casbin (source)	^5.29.0 -> ^5.30.0

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Release Notes

casbin/node-casbin (casbin)

### [`v5.30.0`](https://togithub.com/casbin/node-casbin/blob/HEAD/CHANGELOG.md#5300-2024-04-26) [Compare Source](https://togithub.com/casbin/node-casbin/compare/v5.29.0...v5.30.0) ##### Features - ensure eft and priority are respected in p2, r2, etc ([#​475](https://togithub.com/casbin/node-casbin/issues/475)) ([8ef3deb](https://togithub.com/casbin/node-casbin/commit/8ef3debae7d8f081629b038d78e3d869c32be7f2)), closes [#​474](https://togithub.com/casbin/node-casbin/issues/474)

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Configuration

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🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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This PR has been generated by Mend Renovate. View repository job log here.

[coveralls]

Pull Request Test Coverage Report for Build 8861600324

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall first build on renovate/casbin-5.x at 55.332%

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Totals
Change from base Build 8861530642:	55.3%
Covered Lines:	9563
Relevant Lines:	12458

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💛 - Coveralls