[ci][web] Ignore always_specify_types for JSArray. (#5669)

The definition of `JSArray` (and `JSPromise`) from `dart:js_interop` is changing to `JSArray<T>`, and our analyzer complains about our usage of it with default `T`s, blocking Dart SDK rolls.

This PR ignores the `always_specify_types` lint in the usages of `JSArray`, so this code passes analysis both with the current version of `dart:js_interop` and the next one.

## Issues

* Fixes flutter/flutter#140076
* Cleanup flutter/flutter#140095

Author: ditman

packages/file_selector/file_selector_web/example/integration_test/dom_helper_test.dart

@@ -47,7 +47,11 @@ void main() {
 
     group('getFiles', () {
       final File mockFile1 =
+          // TODO(srujzs): Remove once typed JSArrays (JSArray<T>) get to `stable`.
+          // ignore: always_specify_types
           File(<Object>['123456'].jsify as JSArray, 'file1.txt');
+      // TODO(srujzs): Remove once typed JSArrays (JSArray<T>) get to `stable`.
+      // ignore: always_specify_types
       final File mockFile2 = File(<Object>[].jsify as JSArray, 'file2.txt');
 
       testWidgets('works', (_) async {

packages/google_identity_services_web/example/integration_test/js_interop_id_test.dart

@@ -66,6 +66,8 @@ void main() async {
       expectConfigValue('login_uri', 'https://www.example.com/login');
       expectConfigValue('native_callback', utils.isAJs('function'));
       expectConfigValue('cancel_on_tap_outside', isFalse);
+      // TODO(srujzs): Remove once typed JSArrays (JSArray<T>) get to `stable`.
+      // ignore: always_specify_types
       expectConfigValue('allowed_parent_origin', isA<JSArray>());
       expectConfigValue('prompt_parent_id', 'some_dom_id');
       expectConfigValue('nonce', 's0m3_r4ndOM_vALu3');

packages/google_identity_services_web/lib/src/js_interop/google_accounts_id.dart

@@ -338,6 +338,8 @@ abstract class IdConfiguration {
     JSString? context,
     JSString? state_cookie_domain,
     JSString? ux_mode,
+    // TODO(srujzs): Remove once typed JSArrays (JSArray<T>) get to `stable`.
+    // ignore: always_specify_types
     JSArray? allowed_parent_origin,
     JSFunction? intermediate_iframe_close_callback,
     JSBoolean? itp_support,

packages/google_sign_in/google_sign_in_web/lib/src/flexible_size_html_element_view.dart

@@ -73,6 +73,8 @@ class _FlexHtmlElementView extends State<FlexHtmlElementView> {
 
   /// The function called whenever an observed resize occurs.
   void _onResizeEntries(
+    // TODO(srujzs): Remove once typed JSArrays (JSArray<T>) get to `stable`.
+    // ignore: always_specify_types
     JSArray resizes,
     web.ResizeObserver observer,
   ) {
@@ -88,6 +90,8 @@ class _FlexHtmlElementView extends State<FlexHtmlElementView> {
   /// When mutations are received, this function attaches a Resize Observer to
   /// the first child of the mutation, which will drive
   void _onMutationRecords(
+    // TODO(srujzs): Remove once typed JSArrays (JSArray<T>) get to `stable`.
+    // ignore: always_specify_types
     JSArray mutations,
     web.MutationObserver observer,
   ) {