[recurring] Code generation: update services and models

[AdyenAutomationBot]

This PR contains the automated changes for the recurring service.

The commit history of this PR reflects the adyen-openapi commits that have been applied.

[gemini-code-assist]

Code Review

This pull request updates the Recurring API base URL and applies formatting improvements across several files. Feedback was provided to replace hardcoded JSON field names with constants in the AuthenticatedDataTypeAdapterFactory to enhance maintainability.

[gemini-code-assist]

To improve maintainability and avoid typos from using string literals for JSON field names, it's better to define them as constants. Since they are only used within the read method of the anonymous TypeAdapter, defining them as final local variables in the create method scope is a good approach.

  public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (!AuthenticatedData.class.isAssignableFrom(type.getRawType())) {
      return null;
    }

    final String keyTransportOrKekField = "keyTransportOrKEK";
    final String kekIdentifierField = "KEKIdentifier";

    TypeAdapter<AuthenticatedData> delegate =
        gson.getDelegateAdapter(this, TypeToken.get(AuthenticatedData.class));
    TypeAdapter<JsonObject> jsonObjectAdapter = gson.getAdapter(JsonObject.class);

    return (TypeAdapter<T>)
        new TypeAdapter<AuthenticatedData>() {
          @Override
          public void write(JsonWriter out, AuthenticatedData value) throws IOException {
            delegate.write(out, value);
          }

          @Override
          public AuthenticatedData read(JsonReader in) throws IOException {
            JsonObject jsonObject = jsonObjectAdapter.read(in);

            JsonArray keyTransportOrKEKArray = null;
            if (jsonObject.has(keyTransportOrKekField)) {
              keyTransportOrKEKArray = jsonObject.getAsJsonArray(keyTransportOrKekField);
              jsonObject.remove(keyTransportOrKekField);
            }
            AuthenticatedData result = delegate.fromJsonTree(jsonObject);
            if (keyTransportOrKEKArray != null) {
              for (JsonElement element : keyTransportOrKEKArray) {
                JsonObject item = element.getAsJsonObject();
                if (item.has(kekIdentifierField)) {
                  result.getKeyTransportOrKEK().add(gson.fromJson(item, KEK.class));
                } else {
                  result.getKeyTransportOrKEK().add(gson.fromJson(item, KeyTransport.class));
                }
              }
            }
            return result;
          }
        };
  }