Add GitHub CI workflows for running tests and clippy

.github/workflows/check-httpd-server.yml

@@ -0,0 +1,41 @@
+name: check-httpd-server
+on: push
+
+jobs:
+  test:
+    name: Build & Test
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./httpd-server
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Build
+        run: cargo build --all-features
+      - name: Run tests
+        run: cargo test --all-features
+  docs:
+    name: Docs
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./httpd-server
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Docs
+        run: cargo doc --all --all-features
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./httpd-server
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+      - name: Run clippy
+        run: cargo clippy --all --tests
+      - name: Check formatting
+        run: cargo fmt --all --check