Fix rsi sprite access for verbs (#14284)

Content.Server/Light/EntitySystems/ExpendableLightSystem.cs

@@ -11,6 +11,7 @@ using JetBrains.Annotations;
 using Robust.Server.GameObjects;
 using Robust.Shared.Audio;
 using Robust.Shared.Player;
+using Robust.Shared.Utility;
 
 namespace Content.Server.Light.EntitySystems
 {
@@ -183,7 +184,7 @@ namespace Content.Server.Light.EntitySystems
             ActivationVerb verb = new()
             {
                 Text = Loc.GetString("expendable-light-start-verb"),
-                IconTexture = "/Textures/Interface/VerbIcons/light.svg.192dpi.png",
+                Icon = new SpriteSpecifier.Texture(new ResourcePath("/Textures/Interface/VerbIcons/light.svg.192dpi.png")),
                 Act = () => TryActivate(component)
             };
             args.Verbs.Add(verb);