Update actions/checkout and taiki-e/cache-cargo-install-action actions

Author: taiki-e

.github/workflows/ci.yml

@@ -18,12 +18,12 @@ jobs:
         os: [ubuntu, macos, windows]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{ matrix.rust }}
 
-      - uses: taiki-e/cache-cargo-install-action@v2
+      - uses: taiki-e/cache-cargo-install-action@v3
         with:
           tool: cargo-expand
 
@@ -34,6 +34,6 @@ jobs:
   msrv:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: taiki-e/install-action@cargo-hack
       - run: cargo hack check --rust-version