Revert "Move <reportPlugins> to <reporting><plugins> (#3524)" (#3806)
Revert "Move <reportPlugins> to <reporting><plugins> (#3524)" (#3806)

This reverts commit 8c553b220d1c0855cc732d992c479a7d541c01e3.
googleapis/java-bigquery,googleapis/java-bigquery,googleapis/java-bigquery