DEV: Allow webmock to intercept FinalDestination::HTTP requests (#20575)

spec/support/final_destination_helper.rb

@@ -7,7 +7,15 @@ WebMock::HttpLibAdapterRegistry.instance.register(
 
     def self.enable!
       FinalDestination.send(:remove_const, :HTTP)
-      FinalDestination.send(:const_set, :HTTP, Net::HTTP)
+
+      # At this point, `Net::HTTP` has already been patched by WebMock so we need to re-declare `FinalDestination::HTTP`
+      # but inherit from the patched `Net::HTTP` class. This is to allow requests made using `FinalDestination::HTTP` to be
+      # intercepted by WebMock.
+      FinalDestination.send(
+        :const_set,
+        :HTTP,
+        Class.new(Net::HTTP) { include FinalDestination::SSRFSafeNetHTTP },
+      )
     end
 
     def self.disable!