Support the channel launch option

CHANGELOG.md

@@ -1,3 +1,6 @@
 # CHANGELOG
 
 ## [Unreleased]
+
+### Added
+- `channel` launch option

README.md

@@ -73,6 +73,19 @@ $driver = new PlaywrightDriver(
 );
 ```
 
+`launchOptions` supports `slowMo`, `args` and `channel`. A channel picks a
+browser build or an installed branded browser, such as full Chromium instead
+of the headless shell Playwright uses for headless runs by default:
+
+```php
+$driver = new PlaywrightDriver(
+    browserType: 'chromium',
+    launchOptions: [
+        'channel' => 'chromium',
+    ],
+);
+```
+
 ## Documentation
 
 See [Driver support](docs/driver-support.md) for the tested Mink surface and

src/Driver/PlaywrightDriver.php

@@ -103,6 +103,10 @@ public function start(): void
                 $builder = $builder->withArgs($args);
             }
 
+            if (isset($this->launchOptions['channel']) && is_string($this->launchOptions['channel'])) {
+                $builder = $builder->withChannel($this->launchOptions['channel']);
+            }
+
             $this->browser = $builder->launch();
 
             $contextOptions = $this->contextOptions;