4.7.0

• Fix gradle 7 deprecation warnings (#30)
• Update spotbugs plugin 4.7.1 -> 4.7.9
  (maven group changed: gradle.plugin.com.github.spotbugs.snom -> com.github.spotbugs.snom)
• Add spotbugsShowStackTraces option with default to false.
  Option introduced to change the default for spotbug's showStackTraces option
  to avoid additional stacktrace in logs in non-strict mode (when plugin not fails on errors)
• Update spotbugs 4.2.3 -> 4.4.2
• Update spotbugs exclusions:
  • Exclude EI_EXPOSE_REP
    due to confusing false positives
  • Exclude EI_EXPOSE_REP2
    due to confusing false positives
• Update codenarc 2.1.0 -> 2.2.0
• Deprecate quality.pmdIncremental property because incremental analysis is enabled by default
  since gradle 6.4 (property only useful for enabling it in gradle 5.6 - 6.3)
• Update checkstyle 8.42 -> 9.1
• Update checkstyle config:
  • Add NoWhitespaceBeforeCaseDefaultColon