chore(deps): bump org.apache.maven.plugins:maven-gpg-plugin (#2294)

Bumps [org.apache.maven.plugins:maven-gpg-plugin](https://github.com/apache/maven-gpg-plugin) from 3.2.0 to 3.2.1.
- [Release notes](https://github.com/apache/maven-gpg-plugin/releases)
- [Commits](apache/maven-gpg-plugin@maven-gpg-plugin-3.2.0...maven-gpg-plugin-3.2.1)

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

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Author: dependabot[bot]

operator-framework-bom/pom.xml

@@ -61,7 +61,7 @@
 
     <properties>
         <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
-        <maven-gpg-plugin.version>3.2.0</maven-gpg-plugin.version>
+        <maven-gpg-plugin.version>3.2.1</maven-gpg-plugin.version>
         <maven-source-plugin.version>3.3.0</maven-source-plugin.version>
         <maven-javadoc-plugin.version>3.6.3</maven-javadoc-plugin.version>
     </properties>

pom.xml

@@ -69,7 +69,7 @@
         <maven-source-plugin.version>3.3.0</maven-source-plugin.version>
         <maven-jar-plugin.version>3.3.0</maven-jar-plugin.version>
         <maven-clean-plugin.version>3.3.2</maven-clean-plugin.version>
-        <maven-gpg-plugin.version>3.2.0</maven-gpg-plugin.version>
+        <maven-gpg-plugin.version>3.2.1</maven-gpg-plugin.version>
         <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
         <maven-deploy-plugin.version>3.0.0</maven-deploy-plugin.version>
         <maven-install-plugin.version>3.1.1</maven-install-plugin.version>