ISSUE-8843: Enable spotbugs for pulsar-io module

[sijie]

Original Issue: apache#8843

---

Is your enhancement request related to a problem? Please describe.

• aerospike([SpotBugs][pulsar-io]Enable spotbugs for pulsar-io-aws and pulsar-io-aerospike apache/pulsar#8842)
• aws([SpotBugs][pulsar-io]Enable spotbugs for pulsar-io-aws and pulsar-io-aerospike apache/pulsar#8842)
• core
• batch-discovery-triggerers([SpotBugs][pulsar-io]Enable spotbugs for batch-discovery-triggerers and batch-data-generator apache/pulsar#8889)
• batch-data-generator([SpotBugs][pulsar-io]Enable spotbugs for batch-discovery-triggerers and batch-data-generator apache/pulsar#8889 )
• common
• docs
• twitter
• cassandra
• kafka
• rabbitmq
• kinesis
• hdfs3
• jdbc
• jdbc/core
• data-generator
• elastic-search
• kafka-connect-adaptor
• debezium
• debezium/core
• hdfs2
• canal
• file
• netty([SpotBugs][pulsar-io]Enable spotbugs for pulsar-io-netty apache/pulsar#8863 )
• hbase
• mongo
• flume
• redis
• solr
• influxdb
• dynamodb
• nsq

Describe the solution you'd like
This issue is used to keep track of the spotbugs(https://spotbugs.github.io/) enabled for the pulsar-io module, if you are interested, you can create a pr, here is an example apache#8842.

Test, mvn clean install -pl pulsar-io/module-name, for example:

mvn clean install -pl pulsar-io/aerospike
mvn clean install -pl pulsar-io/aws

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.