chore: add chache

.github/workflows/verify.yaml

@@ -13,6 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+      - uses: Swatinem/rust-cache@v2
       - uses: taiki-e/install-action@v2
         with:
           tool: cargo-hack@0.5,cargo-deny@0.13,just@1,cargo-edit@0.12