fix: bump gpg plugin version

Also, remove batch-mode as it leads to error "gpg: Sorry, we are in
batchmode - can't get input".

Author: Nylle

pom.xml

@@ -185,7 +185,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
-                        <version>1.5</version>
+                        <version>3.1.0</version>
                         <executions>
                             <execution>
                                 <id>sign-artifacts</id>
@@ -194,12 +194,10 @@
                                     <goal>sign</goal>
                                 </goals>
                                 <configuration>
+                                    <!-- Prevent `gpg` from using pinentry programs -->
                                     <gpgArguments>
-                                        <!-- Prevent `gpg` from using pinentry programs -->
                                         <arg>--pinentry-mode</arg>
                                         <arg>loopback</arg>
-                                        <!-- Prevent error `gpg: Sorry, no terminal at all requested - can't get input` -->
-                                        <arg>--batch</arg>
                                     </gpgArguments>
                                 </configuration>
                             </execution>