Fix apache rat check issue. (#8665)

Fix apache rat check issue.

pom.xml

@@ -1272,6 +1272,8 @@ flexible messaging model and an intuitive client API.</description>
             <!-- This file is using ZLib license -->
             <exclude>pulsar-client-cpp/lib/checksum/crc32c_sw.cc</exclude>
 
+            <!-- This file is generated by c++ client -->
+            <exclude>pulsar-client-cpp/generated/**</exclude>
             <!-- This is a text property file that contains just a class name -->
             <exclude>**/META-INF/services/com.scurrilous.circe.HashProvider</exclude>
             <exclude>**/META-INF/services/io.prestosql.spi.Plugin</exclude>

pulsar-io/nsq/src/main/resources/META-INF/services/pulsar-io.yml

@@ -1,3 +1,22 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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
+#
+#   http://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.
+#
+
 name: nsq
 description: Ingest data from an NSQ topic
 sourceClass: org.apache.pulsar.io.nsq.NSQSource