ci: Add Check job to check build features matrix

Author: ValuedMammal

.github/workflows/cont_integration.yml

@@ -34,12 +34,40 @@ jobs:
         run: sudo ip6tables -I INPUT 1 -p tcp -d ::1 --dport 60000 -j DROP
       - name: Timeout test
         run: cargo test -- --ignored test_local_timeout
-      - run: cargo check --verbose --features=use-openssl
-      - run: cargo check --verbose --no-default-features --features=proxy
-      - run: cargo check --verbose --no-default-features --features=proxy,use-openssl
-      - run: cargo check --verbose --no-default-features --features=proxy,use-rustls
-      - run: cargo check --verbose --no-default-features --features=proxy,use-rustls-ring
-      - run: cargo check --verbose --no-default-features --features=proxy,use-rustls,use-rustls-ring
+
+  check:
+    name: Check
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust:
+          - stable # STABLE
+          - 1.75.0 # MSRV
+        features:
+          - --features default
+          - --no-default-features
+          - --no-default-features --features proxy
+          - --no-default-features --features openssl
+          - --no-default-features --features rustls
+          - --no-default-features --features rustls-ring
+          - --no-default-features --features proxy,openssl,rustls,rustls-ring
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-cargo-${{ github.job }}-${{ hashFiles('**/Cargo.toml','**/Cargo.lock') }}
+      - name: Install rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ matrix.rust }}
+      - name: Check features
+        run: cargo check --verbose ${{ matrix.features }}
 
   fmt:
     name: Rust fmt