Add a GitHub Actions main workflow and fix the build

.github/workflows/main.yml

@@ -0,0 +1,50 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  merge_group:
+    types: [checks_requested]
+
+
+jobs:
+  linux-debug:
+    name: Linux (Debug)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+      - name: Run Tests
+        run: cargo build --features servo
+        env:
+          RUST_BACKTRACE: 1
+
+  linux-release:
+    name: Linux (Release)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+      - name: Run Tests
+        run: cargo build --release --features servo
+        env:
+          RUST_BACKTRACE: 1
+
+  build_result:
+    name: Result
+    runs-on: ubuntu-latest
+    if: ${{ always() }}
+    needs:
+      - linux-debug
+      - linux-release
+    steps:
+      - name: Success
+        if: ${{ !contains(needs.*.result, 'failure') && !contains(needs.*.result, 'cancelled') }}
+        run: exit 0
+      - name: Failure
+        if: ${{ contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled') }}
+        run: exit 1
+

Cargo.toml

@@ -113,7 +113,7 @@ tokio-rustls = "0.24"
 tungstenite = "0.20"
 unicode-bidi = "0.3.15"
 unicode-script = "0.5"
-url = "2.5"
+url = { version = "2.5", features = ["serde"] }
 uuid = { version = "1.7.0", features = ["v4"] }
 webdriver = "0.49.0"
 webpki = "0.22"