Maven pom.xml(deps): Bump maven-gpg-plugin from 3.0.1 to 3.1.0 (#111)

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Author: dependabot[bot]

pom.xml

@@ -40,7 +40,7 @@
         <surefire-plugin.version>3.0.0</surefire-plugin.version>
         <maven-source-plugin.version>3.2.1</maven-source-plugin.version>
         <maven-javadoc-plugin.version>3.5.0</maven-javadoc-plugin.version>
-        <maven-gpg-plugin.version>3.0.1</maven-gpg-plugin.version>
+        <maven-gpg-plugin.version>3.1.0</maven-gpg-plugin.version>
 
         <license.dir>${basedir}</license.dir>