[FSSDK-1119] custom_attribute_condition_evaluator copyright test addition

Author: junaed-optimizely

lib/core/custom_attribute_condition_evaluator/index.spec.ts

@@ -1,3 +1,18 @@
+/**
+ * Copyright 2024, Optimizely
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
 import * as customAttributeEvaluator from './';
 import { MISSING_ATTRIBUTE_VALUE, UNEXPECTED_TYPE_NULL } from 'log_message';