build(deps): 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](https://github.com/swatinem/rust-cache/compare/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] <support@github.com>

.github/workflows/ci.yml

@@ -181,7 +181,7 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v4.1.1
 
-      - uses: Swatinem/rust-cache@v2.7.1
+      - uses: Swatinem/rust-cache@v2.7.3
 
       - name: Run RPC server tests
         run: cargo test --package swap --all-features --test rpc -- --nocapture