Bump spotbugs from 4.6.0 to 4.7.1 (#120)

Bumps [spotbugs](https://github.com/spotbugs/spotbugs) from 4.6.0 to 4.7.1.
- [Release notes](https://github.com/spotbugs/spotbugs/releases)
- [Changelog](https://github.com/spotbugs/spotbugs/blob/master/CHANGELOG.md)
- [Commits](spotbugs/spotbugs@4.6.0...4.7.1)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -196,7 +196,7 @@
     <commons.site-plugin.version>3.12.0</commons.site-plugin.version>
     <commons.source-plugin.version>3.2.1</commons.source-plugin.version>
     <commons.spotbugs.plugin.version>4.7.1.0</commons.spotbugs.plugin.version>
-    <commons.spotbugs.impl.version>4.6.0</commons.spotbugs.impl.version>
+    <commons.spotbugs.impl.version>4.7.1</commons.spotbugs.impl.version>
     <commons.surefire-report.version>2.22.2</commons.surefire-report.version>
     <commons.surefire.version>2.22.2</commons.surefire.version>
     <commons.wagon-ssh.version>3.5.2</commons.wagon-ssh.version>