Updated pom for java 21

Author: javadev

pom-central21.xml

@@ -4,7 +4,7 @@
   <groupId>com.github.javadev</groupId>
   <artifactId>underscore21</artifactId>
   <packaging>jar</packaging>
-  <version>1.56</version>
+  <version>1.57</version>
   <name>java 21 port of Underscore.js</name>
   <description>The java 21 port of Underscore.js</description>
   <url>https://github.com/javadev/underscore-java17</url>
@@ -42,7 +42,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
-        <version>3.11.0</version>
+        <version>3.13.0</version>
         <configuration>
           <source>21</source>
           <target>21</target>
@@ -52,7 +52,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>3.0.0</version>
+        <version>3.2.5</version>
         <dependencies>
           <dependency>
             <groupId>org.junit.jupiter</groupId>
@@ -64,7 +64,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-jar-plugin</artifactId>
-        <version>3.3.0</version>
+        <version>3.4.0</version>
         <configuration>
           <archive>
             <manifestEntries>
@@ -79,7 +79,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
-        <version>3.2.0</version>
+        <version>3.3.1</version>
         <executions>
           <execution>
             <id>attach-sources</id>
@@ -93,7 +93,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
-        <version>3.4.1</version>
+        <version>3.6.3</version>
         <executions>
           <execution>
             <id>attach-sources</id>
@@ -112,7 +112,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-gpg-plugin</artifactId>
-        <version>1.6</version>
+        <version>3.2.4</version>
         <executions>
           <execution>
             <id>sign-artifacts</id>