Bump Swatinem/rust-cache from 2.5.1 to 2.6.1

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.5.1 to 2.6.1.
- [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...v2.6.1)

---
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>

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Update Rust toolchain
         run: rustup update
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.5.1
+        uses: Swatinem/rust-cache@v2.6.1
       - name: Clippy
         run: cargo clippy --all-targets --locked -- --deny warnings
       - name: rustfmt
@@ -36,7 +36,7 @@ jobs:
       - name: Update Rust toolchain
         run: rustup update
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.5.1
+        uses: Swatinem/rust-cache@v2.6.1
       - name: Run unit tests
         run: cargo test --locked
 
@@ -58,7 +58,7 @@ jobs:
       - name: Install Rust linux-musl target
         run: rustup target add x86_64-unknown-linux-musl
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.5.1
+        uses: Swatinem/rust-cache@v2.6.1
       - name: Install Pack CLI
         uses: buildpacks/github-actions/setup-pack@v5.3.0
       - name: Pull builder image