use rust-cache action v2

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
           profile: minimal
           toolchain: stable
           override: true
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@v2
       - run: cargo test --all-features -- --skip src/lib.rs
         if: ${{ matrix.os != 'windows-latest' }}
       - run: cargo test --features=search -- --skip src\lib.rs
@@ -34,7 +34,7 @@ jobs:
           toolchain: stable
           components: rustfmt, clippy
           override: true
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@v2
       - run: cargo fmt -- --check
       - run: cargo clippy --examples --all-features -- -D warnings
       - run: cargo clippy --no-default-features -- -D warnings