Bump the standard-plugins group across 1 directory with 3 updates (#37)

Bumps the standard-plugins group with 3 updates in the / directory: [org.apache.maven.plugins:maven-surefire-plugin](https://github.com/apache/maven-surefire), [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) and [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin).


Updates `org.apache.maven.plugins:maven-surefire-plugin` from 3.2.5 to 3.4.0
- [Release notes](https://github.com/apache/maven-surefire/releases)
- [Commits](apache/maven-surefire@surefire-3.2.5...surefire-3.4.0)

Updates `org.apache.maven.plugins:maven-javadoc-plugin` from 3.7.0 to 3.8.0
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](apache/maven-javadoc-plugin@maven-javadoc-plugin-3.7.0...maven-javadoc-plugin-3.8.0)

Updates `org.apache.maven.plugins:maven-gpg-plugin` from 3.2.4 to 3.2.5
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.2.4...maven-gpg-plugin-3.2.5)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-surefire-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: standard-plugins
- dependency-name: org.apache.maven.plugins:maven-javadoc-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: standard-plugins
- dependency-name: org.apache.maven.plugins:maven-gpg-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: standard-plugins
...

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

pom.xml

@@ -58,10 +58,10 @@
 
         <!-- plugin versions -->
         <flatten-maven-plugin.version>1.6.0</flatten-maven-plugin.version>
-        <maven-surefire-plugin.version>3.2.5</maven-surefire-plugin.version>
+        <maven-surefire-plugin.version>3.4.0</maven-surefire-plugin.version>
         <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
-        <maven-javadoc-plugin.version>3.7.0</maven-javadoc-plugin.version>
-        <maven-gpg-plugin.version>3.2.4</maven-gpg-plugin.version>
+        <maven-javadoc-plugin.version>3.8.0</maven-javadoc-plugin.version>
+        <maven-gpg-plugin.version>3.2.5</maven-gpg-plugin.version>
         <central-publishing-maven-plugin.version>0.5.0</central-publishing-maven-plugin.version>
 
         <!-- dependency versions-->