ci: fix cache hopefully

.forgejo/workflows/build.yaml

@@ -19,7 +19,8 @@ jobs:
       - uses: actions/checkout@v4
       - run: ls . && pwd && whoami
         shell: bash
-      - uses: actions/cache@v4
+      - uses: actions/cache/restore@v4
+        id: cargo-cache-restore
         with:
           path: |
             ~/.cargo/
@@ -27,5 +28,9 @@ jobs:
       - uses: https://github.com/dtolnay/rust-toolchain@stable
         with:
           toolchain: nightly
-      
+      - uses: actions/cache/save@v4
+        with:
+          path: |
+            ~/.cargo/
+          key: ${{ steps.cargo-cache-restore.outputs.cache-primary-key }}
       - run: cargo test --all-features