fix: wrong plugin versions in pom.xml

pom.xml

@@ -19,6 +19,8 @@
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <plugin.publishing.version>0.6.0</plugin.publishing.version>
+        <plugin.javadoc.version>3.10.1</plugin.javadoc.version>
+        <plugin.source.version>3.3.1</plugin.source.version>
         <plugin.gpg.version>3.2.7</plugin.gpg.version>
     </properties>
 
@@ -103,14 +105,27 @@
             <plugin>
                 <groupId>org.sonatype.central</groupId>
                 <artifactId>central-publishing-maven-plugin</artifactId>
-                <version>0.6.0</version>
+                <version>${plugin.publishing.version}</version>
                 <extensions>true</extensions>
                 <configuration>
                     <publishingServerId>central</publishingServerId>
                     <autoPublish>true</autoPublish>
                     <waitUntil>published</waitUntil>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-source-plugin</artifactId>
+                <version>${plugin.source.version}</version>
+                <executions>
+                    <execution>
+                        <id>attach-sources</id>
+                        <goals>
+                            <goal>jar-no-fork</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>