chore: add maven central publishing

Author: Steffen911

.github/workflows/deploy.yml

@@ -22,7 +22,13 @@ jobs:
       - name: Build with Maven
         run: mvn clean package
 
+      - name: Publish to Maven CEntral
+        run: mvn --batch-mode deploy
+        env:
+          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
+          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
+
       - name: Publish to GitHub Packages
-        run: mvn deploy
+        run: mvn --batch-mode deploy
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

pom.xml

@@ -62,4 +62,19 @@
             <version>${junit.version}</version>
         </dependency>
     </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.sonatype.central</groupId>
+                <artifactId>central-publishing-maven-plugin</artifactId>
+                <version>0.7.0</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <publishingServerId>central</publishingServerId>
+                    <autoPublish>true</autoPublish>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>