chore(deps): update dependency org.apache.maven.plugins:maven-gpg-plugin to v3.2.8

Author: renovate[bot]

pom.xml

@@ -27,7 +27,7 @@
         <jacoco-plugin-version>0.8.14</jacoco-plugin-version>
         <maven-deploy-plugin-version>3.1.4</maven-deploy-plugin-version>
         <nexus-staging-plugin-version>1.6.13</nexus-staging-plugin-version>
-        <maven-gpg-plugin-version>3.1.0</maven-gpg-plugin-version>
+        <maven-gpg-plugin-version>3.2.8</maven-gpg-plugin-version>
         <maven-source-plugin-version>3.4.0</maven-source-plugin-version>
         <maven-shade-plugin-version>3.5.1</maven-shade-plugin-version>
         <maven-jar-plugin-version>3.5.0</maven-jar-plugin-version>