Update Swatinem/rust-cache action to v2.7.3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
Swatinem/rust-cache	action	patch	v2.7.0 -> v2.7.3

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Release Notes

Swatinem/rust-cache (Swatinem/rust-cache)

v2.7.3

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• Work around upstream problem that causes cache saving to hang for minutes.

Full Changelog: Swatinem/rust-cache@v2.7.2...v2.7.3

v2.7.2

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What's Changed

• Update action runtime to node20 by @​rhysd in https://github.com/Swatinem/rust-cache/pull/175
• Only key by Cargo.toml and Cargo.lock files of workspace members by @​max-heller in https://github.com/Swatinem/rust-cache/pull/180

New Contributors

• @​rhysd made their first contribution in https://github.com/Swatinem/rust-cache/pull/175
• @​max-heller made their first contribution in https://github.com/Swatinem/rust-cache/pull/180

Full Changelog: Swatinem/rust-cache@v2.7.1...v2.7.2

v2.7.1

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[Kobzol]

We cannot update (yet) due to usage of Node 20.

[renovate]

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