fix(deps): update rust crate indexmap to v2.11.4

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This PR contains the following updates:

Package	Type	Update	Change
indexmap	dependencies	patch	2.11.1 -> 2.11.4

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Release Notes

indexmap-rs/indexmap (indexmap)

v2.11.4

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• Updated the hashbrown dependency to a range allowing 0.15 or 0.16.

v2.11.3

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• Make the minimum serde version only apply when "serde" is enabled.

v2.11.2

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• Switched the "serde" feature to depend on serde_core, improving build
  parallelism in cases where other dependents have enabled "serde/derive".

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