Add Rust dependencies caching steps to GitHub workflow for CI

Author: diemogebhardt

.github/workflows/ci.yml

@@ -42,6 +42,11 @@ jobs:
           toolchain: ${{ matrix.toolchain }}
           target: ${{ matrix.target }}
 
+      - name: Handle Rust dependencies caching
+        uses: Swatinem/rust-cache@v2
+        with:
+          key: v1-${{ matrix.target }}
+
       - name: Run tests
         uses: clechasseur/rs-cargo@v2
         with:
@@ -78,6 +83,11 @@ jobs:
           toolchain: stable
           components: clippy
 
+      - name: Handle Rust dependencies caching
+        uses: Swatinem/rust-cache@v2
+        with:
+          key: v1-linux-gnu
+
       - name: Run linter
         run: cargo clippy --workspace