Upgrade to Apache pom 24 and make build reproductible
diff --git a/pom.xml b/pom.xml
index 2c3c6da..99f536d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache</groupId>
         <artifactId>apache</artifactId>
-        <version>23</version>
+        <version>24</version>
     </parent>
 
     <groupId>org.apache.shiro</groupId>
@@ -69,6 +69,7 @@
         <shiro.previousVersion>1.7.1</shiro.previousVersion>
         <!-- Replaced by the build number plugin at build time: -->
         <buildNumber>${user.name}-${maven.build.timestamp}</buildNumber>
+        <project.build.outputTimestamp>2021-07-16T23:08:15Z</project.build.outputTimestamp>
         <jacoco.skip>true</jacoco.skip>
         <!--suppress CheckTagEmptyBody -->
         <surefire.argLine></surefire.argLine>