Extend maven gpg configuration

Author: tzolov

pom.xml

@@ -331,6 +331,7 @@
 										<arg>--pinentry-mode</arg>
 										<arg>loopback</arg>
 									</gpgArguments>
+									<passphrase>${env.MAVEN_GPG_PASSPHRASE}</passphrase>
 								</configuration>
 							</execution>
 						</executions>
@@ -384,4 +385,4 @@
 		</repository>
 	</repositories>
 
-</project>
+</project>