Bump Swatinem/rust-cache from 2.5.1 to 2.6.0 (#42)

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/swatinem/rust-cache/releases)
- [Changelog](https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md)
- [Commits](Swatinem/rust-cache@v2.5.1...v2.6.0)

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

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.yml

@@ -45,7 +45,7 @@ jobs:
           target: ${{ matrix.target }}
           override: true
 
-      - uses: Swatinem/rust-cache@v2.5.1
+      - uses: Swatinem/rust-cache@v2.6.0
         with:
           key: ${{ matrix.target }}
 
@@ -107,7 +107,7 @@ jobs:
           target: ${{ matrix.target }}
           override: true
 
-      - uses: Swatinem/rust-cache@v2.5.1
+      - uses: Swatinem/rust-cache@v2.6.0
         with:
           key: ${{ matrix.target }}