* Initial attempt to upgrade hashbrown to latest to get rid of the crate warnings.
* Replace `.expect()` usage with use of `const`.
* Update ahash 0.7 as well
* Remove unsafe code.
* Update `lru` to 0.12 and fix release test errors.
* Set non-blocking socket
* Bump testcontainers to 0.15.
* Fix lint
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Co-authored-by: Michael Sproul <michael@sigmaprime.io>
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