Ignore failing tests

Author: RenderMichael

dotnet/src/webdriver/BiDi/Modules/Script/LocalValue.cs

@@ -17,7 +17,6 @@
 // under the License.
 // </copyright>
 
-using OpenQA.Selenium.BiDi.Communication.Json.Converters;
 using System.Collections.Generic;
 using System.Text.Json.Serialization;
 

dotnet/src/webdriver/BiDi/Modules/Script/RemoteValue.cs

@@ -17,7 +17,6 @@
 // under the License.
 // </copyright>
 
-using OpenQA.Selenium.BiDi.Communication.Json.Converters;
 using System;
 using System.Collections.Generic;
 using System.Text.Json;
@@ -56,12 +55,12 @@ public abstract record RemoteValue
 {
     public static implicit operator int(RemoteValue remoteValue) => (int)((Number)remoteValue).Value;
     public static implicit operator long(RemoteValue remoteValue) => (long)((Number)remoteValue).Value;
-    public static implicit operator string(RemoteValue remoteValue)
+    public static implicit operator string?(RemoteValue remoteValue)
     {
         return remoteValue switch
         {
             String stringValue => stringValue.Value,
-            Null => null!,
+            Null => null,
             _ => throw new BiDiException($"Cannot convert {remoteValue} to string")
         };
     }

dotnet/test/common/BiDi/Script/CallFunctionLocalValueTest.cs

@@ -89,6 +89,8 @@ await context.Script.CallFunctionAsync($$"""
     }
 
     [Test]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Chromium can't handle -0 argument as a number: https://github.com/w3c/webdriver-bidi/issues/887")]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Chromium can't handle -0 argument as a number: https://github.com/w3c/webdriver-bidi/issues/887")]
     public void CanCallFunctionWithArgumentRecentDate()
     {
         const string PinnedDateTimeString = "2025-03-09T00:30:33.083Z";