ci: add direct-minimal-versions job

Author: xtqqczze

.github/workflows/ci.yml

@@ -43,6 +43,22 @@ jobs:
           components: clippy
       - run: cargo clippy -- -D warnings
 
+  direct-minimal-versions:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+
+    steps:
+      - uses: actions/checkout@v6
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: nightly
+          components: clippy
+
+      - run: cargo update -Z direct-minimal-versions
+      - run: cargo clippy -- -D warnings
+
   rustfmt:
     runs-on: ${{ matrix.os }}
     strategy: