chore(deps): bump Swatinem/rust-cache (#1021)

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from e18b497796c12c097a38f9edb9d0641fb99eee32 to 258712b0b7b1ddf8bddc9fc3b0faca682b2736c3.
- [Release notes](https://github.com/swatinem/rust-cache/releases)
- [Changelog](https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md)
- [Commits](Swatinem/rust-cache@e18b497...258712b)

---
updated-dependencies:
- dependency-name: Swatinem/rust-cache
  dependency-version: 258712b0b7b1ddf8bddc9fc3b0faca682b2736c3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -44,7 +44,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy, rustfmt
-      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
+      - uses: Swatinem/rust-cache@258712b0b7b1ddf8bddc9fc3b0faca682b2736c3 # v2
         with:
           workspaces: backend
       - run: cargo fmt --all -- --check