Update indexmap requirement from 1.9.3 to 2.2.1

[dependabot]

Updates the requirements on indexmap to permit the latest version.

Changelog

Sourced from indexmap's changelog.

• 2.2.1

  • Corrected the signature of RawOccupiedEntryMut::into_key(self) -> &'a mut K, This a breaking change from 2.2.0, but that version was published for less than a day and has now been yanked.

• 2.2.0

  • The new IndexMap::get_index_entry method finds an entry by its index for in-place manipulation.

  • The Keys iterator now implements Index<usize> for quick access to the entry's key, compared to indexing the map to get the value.

  • The new IndexMap::splice and IndexSet::splice methods will drain the given range as an iterator, and then replace that range with entries from an input iterator.

  • The new trait RawEntryApiV1 offers opt-in access to a raw entry API for IndexMap, corresponding to the unstable API on HashSet as of Rust 1.75.

  • Many IndexMap and IndexSet methods have relaxed their type constraints, e.g. removing K: Hash on methods that don't actually need to hash.

  • Removal methods remove, remove_entry, and take are now deprecated in favor of their shift_ or swap_ prefixed variants, which are more explicit about their effect on the index and order of remaining items. The deprecated methods will remain to guide drop-in replacements from HashMap and HashSet toward the prefixed methods.

• 2.1.0

  • Empty slices can now be created with map::Slice::{new, new_mut} and set::Slice::new. In addition, Slice::new, len, and is_empty are now const functions on both types.

  • IndexMap, IndexSet, and their respective Slices all have binary search methods for sorted data: map binary_search_keys and set binary_search for plain comparison, binary_search_by for custom comparators, binary_search_by_key for key extraction, and partition_point for boolean conditions.

• 2.0.2

  • The hashbrown dependency has been updated to version 0.14.1 to complete the support for Rust 1.63.

• 2.0.1

  • MSRV: Rust 1.63.0 is now supported as well, pending publication of

... (truncated)

Commits

• 7264ce4 Merge pull request #304 from cuviper/raw-into_key
• 244bd81 Fix RawOccupiedEntryMut::into_key
• 7107c49 Merge pull request #303 from cuviper/test-updates
• 34a7af7 Allow clippy::style
• 382a45c Upgrade dev-dep itertools to 0.12
• 904689f ci: upgrade to actions/checkout@v4
• 405fa10 Merge pull request #302 from cuviper/release-2.2.0
• d84bf5e Release 2.2.0
• 9edb1a4 Merge pull request #300 from cuviper/raw_entry_v1
• a1495fd Merge pull request #301 from cuviper/unstringify
• Additional commits viewable in compare view

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[dependabot]

Superseded by #14.