Bump the github-dependencies group with 2 updates

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


Updates `io.projectreactor:reactor-core` from 3.5.11 to 3.6.4
- [Release notes](https://github.com/reactor/reactor-core/releases)
- [Commits](reactor/reactor-core@v3.5.11...v3.6.4)

Updates `org.apache.maven.plugins:maven-gpg-plugin` from 3.1.0 to 3.2.0
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.1.0...maven-gpg-plugin-3.2.0)

---
updated-dependencies:
- dependency-name: io.projectreactor:reactor-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-dependencies
- dependency-name: org.apache.maven.plugins:maven-gpg-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-dependencies
...

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

pom.xml

@@ -59,12 +59,12 @@
         <extension.springcloud.version>4.9.1</extension.springcloud.version>
         <extension.tracing.version>4.9.0</extension.tracing.version>
 
-        <projectreactor.version>3.5.11</projectreactor.version>
+        <projectreactor.version>3.6.4</projectreactor.version>
 
         <bom-helper.version>0.4.0</bom-helper.version>
         <maven-clean.version>3.3.2</maven-clean.version>
         <maven-deploy.version>3.1.1</maven-deploy.version>
-        <maven-gpg.version>3.1.0</maven-gpg.version>
+        <maven-gpg.version>3.2.0</maven-gpg.version>
         <maven-install.version>3.1.1</maven-install.version>
         <maven-release.version>3.0.1</maven-release.version>
     </properties>