[url_launcher] suppress a uses or overrides a deprecated API warning in WebViewActivity

packages/url_launcher/url_launcher/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 5.7.4
+
+* Suppress deprecation warning on the `shouldOverrideUrlLoading` method on Android of the `FlutterWebChromeClient` class.
+
 ## 5.7.3
 
 * Check in linux/ directory for example/

packages/url_launcher/url_launcher/android/src/main/java/io/flutter/plugins/urllauncher/WebViewActivity.java

@@ -86,6 +86,11 @@ public boolean shouldOverrideUrlLoading(
               return true;
             }
 
+            /*
+             * This method is deprecated in API 24. Still overridden to support
+             * earlier Android versions.
+             */
+            @SuppressWarnings("deprecation")
             @Override
             public boolean shouldOverrideUrlLoading(WebView view, String url) {
               webview.loadUrl(url);