Bump Swatinem/rust-cache from 2.7.1 to 2.7.3

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.7.1 to 2.7.3.
- [Release notes](https://github.com/swatinem/rust-cache/releases)
- [Changelog](https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md)
- [Commits](Swatinem/rust-cache@v2.7.1...v2.7.3)

---
updated-dependencies:
- dependency-name: Swatinem/rust-cache
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -18,7 +18,7 @@ jobs:
           override: true
           components: clippy, rustfmt
 
-      - uses: Swatinem/[email protected].1
+      - uses: Swatinem/[email protected].3
 
       - uses: actions-rs/cargo@v1
         with: