https://maven.apache.org/shared/maven-archiver/examples/manifestFile.html

pom.xml

    <project>
      ...
      <build>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            ...
            <configuration>
              <archive>
                <manifestFile>src/main/resources/META-INF/MANIFEST.MF</manifestFile>
              </archive>
            </configuration>
            ...
          </plugin>
        </plugins>
      </build>
      ...
    </project>