Bump Swatinem/rust-cache from 2.7.8 to 2.8.0 (#43)

---
updated-dependencies:
- dependency-name: Swatinem/rust-cache
  dependency-version: 2.8.0
  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>

.github/workflows/rust.yml

@@ -25,7 +25,7 @@ jobs:
           toolchain: stable
           profile: minimal
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.7.8
+        uses: Swatinem/rust-cache@v2.8.0
       - name: Run tests
         run: cargo test --verbose
 
@@ -50,7 +50,7 @@ jobs:
       - name: Install RustFmt
         run: rustup component add rustfmt
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.7.8
+        uses: Swatinem/rust-cache@v2.8.0
       - name: Run format check
         run: cargo fmt --all --check
       - name: Run clippy
@@ -75,7 +75,7 @@ jobs:
         with:
           toolchain: ${{ matrix.rv }}
       - name: Rust Cache
-        uses: Swatinem/rust-cache@v2.7.8
+        uses: Swatinem/rust-cache@v2.8.0
       - name: Cargo Build
         uses: actions-rs/cargo@v1
         with: