fix: enable batch mode

This is supposed to prevent the error "gpg: Sorry, no terminal at all requested - can't get input" when using --no-tty.

Author: Nylle

pom.xml

@@ -194,10 +194,12 @@
  <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>