fix(deps): re-add reload4j as a dependency in bigtable-hbase-beam

[igorbernstein2]

This is needed because the HBaseMutationCoder uses HBase's ProtobufUtil whose class initializer will (via a chain of class initializers) end up invoking the class initializer for mapred.JobConf, which will try to set the default log4j Level.

[edited by @kolea2]
Users running the direct runner could see the below error:

org.apache.beam.sdk.Pipeline$PipelineExecutionException: java.lang.NoClassDefFoundError: org/apache/log4j/Level

Note: this issue has currently only been observed when running the direct runner (and not the dataflow runner).

As a temporary workaround, if running local jobs, adding reload4j as a runtime dependency explicitly will work:

<dependency>
 <groupId>ch.qos.reload4j</groupId>
 <artifactId>reload4j</artifactId>
 <version>1.2.24</version>
 <scope>runtime</scope>
</dependency>