Create UberJar for CloudSQL (PostgreSQL) with Socket Factory included

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.gmail.n0531m</groupId>
  <artifactId>postgresql_${postgresql.version}-with-cloudsql-socket-factory_${postgresql.socketfactory.version}</artifactId>
  <packaging>pom</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <prerequisites>
    <maven>3.6.0</maven>
  </prerequisites>
  <properties>
    <postgresql.version>42.6.0</postgresql.version>
    <postgresql.socketfactory.version>1.11.2</postgresql.socketfactory.version>
  </properties>
  <dependencies>
    <!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
    <dependency>
      <groupId>org.postgresql</groupId>
      <artifactId>postgresql</artifactId>
      <version>${postgresql.version}</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.google.cloud.sql/postgres-socket-factory -->
    <dependency>
      <groupId>com.google.cloud.sql</groupId>
      <artifactId>postgres-socket-factory</artifactId>
      <version>${postgresql.socketfactory.version}</version>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-assembly-plugin</artifactId>
        <version>3.5.0</version>
        <configuration>
          <!-- get all project dependencies -->
          <descriptorRefs>
            <descriptorRef>jar-with-dependencies</descriptorRef>
          </descriptorRefs>
        </configuration>
        <executions>
          <execution>
            <id>make-assembly</id>
            <!-- bind to the packaging phase -->
            <phase>package</phase>
            <goals>
              <goal>single</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>
</project>