chore(ci): Ensure latest deps are good

Author: epage

.github/workflows/rust-next.yml

@@ -38,3 +38,22 @@ jobs:
       run: cargo test --workspace --all-features
     - name: No-default features
       run: cargo test --workspace --no-default-features
+  latest:
+    name: "Check latest dependencies"
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        toolchain: stable
+    - uses: Swatinem/rust-cache@v2
+    - name: Update dependencues
+      run: cargo update
+    - name: Default features
+      run: cargo test --workspace --all-targets
+    - name: All features
+      run: cargo test --workspace --all-targets --all-features
+    - name: No-default features
+      run: cargo test --workspace --all-targets --no-default-features