Migrate Maven Central publishing to Sonatype Central Portal

Replace deprecated nexus-staging-maven-plugin (oss.sonatype.org) with
central-publishing-maven-plugin (central.sonatype.com). Update
distributionManagement and workflow server-id accordingly.

Author: agrasth

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
         with:
           distribution: "temurin"
           java-version: "8"
-          server-id: ossrh
+          server-id: central
           server-username: OSSRH_USERNAME
           server-password: OSSRH_PASSWORD
           gpg-private-key: ${{ secrets.OSSRH_GPG_PRIVATE_KEY }}

pom.xml

@@ -22,13 +22,9 @@
 
     <distributionManagement>
         <snapshotRepository>
-            <id>ossrh</id>
-            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+            <id>central</id>
+            <url>https://central.sonatype.com/repository/maven-snapshots/</url>
         </snapshotRepository>
-        <repository>
-            <id>ossrh</id>
-            <url>https://oss.sonatype.org/service/local/staging/deploy/maven2</url>
-        </repository>
     </distributionManagement>
 
     <prerequisites>
@@ -483,14 +479,14 @@
                         </executions>
                     </plugin>
                     <plugin>
-                        <groupId>org.sonatype.plugins</groupId>
-                        <artifactId>nexus-staging-maven-plugin</artifactId>
-                        <version>1.6.8</version>
+                        <groupId>org.sonatype.central</groupId>
+                        <artifactId>central-publishing-maven-plugin</artifactId>
+                        <version>0.7.0</version>
                         <extensions>true</extensions>
                         <configuration>
-                            <serverId>ossrh</serverId>
-                            <nexusUrl>https://oss.sonatype.org</nexusUrl>
-                            <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                            <publishingServerId>central</publishingServerId>
+                            <autoPublish>true</autoPublish>
+                            <waitUntil>published</waitUntil>
                         </configuration>
                     </plugin>
                 </plugins>