Bump the dependencies group with 2 updates

Bumps the dependencies group with 2 updates: [com.github.spotbugs:spotbugs-maven-plugin](https://github.com/spotbugs/spotbugs-maven-plugin) and [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin).


Updates `com.github.spotbugs:spotbugs-maven-plugin` from 4.8.6.3 to 4.8.6.4
- [Release notes](https://github.com/spotbugs/spotbugs-maven-plugin/releases)
- [Commits](spotbugs/spotbugs-maven-plugin@spotbugs-maven-plugin-4.8.6.3...spotbugs-maven-plugin-4.8.6.4)

Updates `org.apache.maven.plugins:maven-gpg-plugin` from 3.2.5 to 3.2.6
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.2.5...maven-gpg-plugin-3.2.6)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: org.apache.maven.plugins:maven-gpg-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -79,7 +79,7 @@
         <maven.javadoc.version>3.10.0</maven.javadoc.version>
         <maven.assembly.version>3.7.1</maven.assembly.version>
         <maven.plugin.plugin.version>3.9.0</maven.plugin.plugin.version>
-        <maven.gpg.version>3.2.5</maven.gpg.version>
+        <maven.gpg.version>3.2.6</maven.gpg.version>
         <maven.assembly.version>3.7.1</maven.assembly.version>
         <sonatype.nexus.central>0.5.0</sonatype.nexus.central>
 
@@ -95,7 +95,7 @@
 
         <!--   Build tools' properties     -->
         <spotbugs.version>4.8.6</spotbugs.version>
-        <maven.spotbugs.version>4.8.6.3</maven.spotbugs.version>
+        <maven.spotbugs.version>4.8.6.4</maven.spotbugs.version>
         <maven.checkstyle.version>3.5.0</maven.checkstyle.version>
 
         <it.skip>true</it.skip>