Update lru requirement from 0.4.3 to 0.6.2

[dependabot[bot]]

Updates the requirements on lru to permit the latest version.

Changelog

Sourced from lru's changelog.

v0.6.2 - 2020-12-12

• Rename optin_builtin_traits to auto_traits.

v0.6.1 - 2020-11-02

• Update dependency on hashbrown to 0.9.

v0.6.0 - 2020-08-02

• Update dependency on hashbrown to 0.8.

v0.5.3 - 2020-07-06

• Fix bug that causes crash when putting an item into a zero-capacity cache.

v0.5.2 - 2020-06-17

• Fix nightly feature.

v0.5.1 - 2020-06-02

• Fix memory leak whereby old entries wouldn't be dropped when cache is full.

v0.5.0 - 2020-05-28

• Stop gating the alloc crate behind the nightly flag.

v0.4.5 - 2020-05-25

• Use as_mut_ptr in drop to fix memory leak.

v0.4.4 - 2020-05-19

• Use mem::MaybeUninit for key and value fields of nodes and not the nodes themselves.

v0.4.3 - 2019-12-10

• Add back import of alloc crate on nightly which was accidentally removed.

v0.4.2 - 2019-12-08

• Make hasbrown usage optional and add MSRV documentation.

v0.4.1 - 2019-11-26

• Use mem::MaybeUninit instead of mem::uninitialized.

v0.4.0 - 2019-10-28

... (truncated)

Commits

• 2d2f272 Merge pull request #98 from jeromefroe/prep-0.6.2-release
• 53a8395 Ensure code is properly formatted
• f42b523 Prepare 0.6.2 release
• 6367572 Merge pull request #97 from rohitjoshi/master
• afb269c Update lib.rs
• 51b7676 Update lib.rs
• 39e568d rename optin_builtin_traits to auto_traits
• a2dbbf4 Merge pull request #95 from jeromefroe/jerome/release-v7
• 5b711f9 Change version to 0.6.1
• 6f86cc9 Release 0.7.0
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #87.