Add cachekey

Signed-off-by: Marcel Müller <neikos@neikos.email>

.forgejo/workflows/ci.yml

@@ -27,6 +27,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install Rust
         uses: https://github.com/dtolnay/rust-toolchain@1.88
+        id: toolchain
         with:
           components: clippy
       - name: ⚡ Cache
@@ -36,7 +37,7 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
-      - run: cargo clippy -- -D warnings
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}-${{ steps.toolchain.outputs.cachekey }}
+      - run: cargo clippy --all-targets -- -D warnings
       - run: cargo build --verbose
       - run: cargo test --verbose