Bump Swatinem/rust-cache from 2.6.2 to 2.7.0 (#685)

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.6.2 to 2.7.0.
- [Release notes](https://github.com/swatinem/rust-cache/releases)
- [Changelog](https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md)
- [Commits](Swatinem/rust-cache@v2.6.2...v2.7.0)

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

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

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
         # which include the latest stable release of Rust, Rustup, Clippy and rustfmt.
         run: rustup update
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.6.2
+        uses: Swatinem/rust-cache@v2.7.0
       - name: Clippy
         # Using --all-targets so tests are checked and --deny to fail on warnings.
         # Not using --locked here and below since Cargo.lock is in .gitignore.
@@ -44,7 +44,7 @@ jobs:
       - name: Update Rust toolchain
         run: rustup update
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.6.2
+        uses: Swatinem/rust-cache@v2.7.0
       - name: Run unit tests
         run: cargo test --all-features
 
@@ -60,7 +60,7 @@ jobs:
       - name: Install Rust linux-musl target
         run: rustup target add x86_64-unknown-linux-musl
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.6.2
+        uses: Swatinem/rust-cache@v2.7.0
       - name: Install Pack CLI
         uses: buildpacks/github-actions/[email protected]
       - name: Run integration tests