refactor(ci): use cargo-minimal-versions to check minimal versions

Author: tottoto

.github/workflows/ci.yml

@@ -29,12 +29,16 @@ jobs:
       - run: cargo test --workspace
       - if: matrix.rust == 'nightly'
         run: cargo test --benches
-      - name: Check minimal versions
-        if: matrix.rust == 'nightly'
-        run: |
-          cargo clean
-          cargo update -Z minimal-versions
-          cargo check
+
+  minimal-versions:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@nightly
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: taiki-e/install-action@cargo-hack
+      - uses: taiki-e/install-action@cargo-minimal-versions
+      - run: cargo minimal-versions check --workspace
 
   MSRV:
     runs-on: ubuntu-latest