Why aren't the Maven dependencies of my JAR being included in my WAR?

I have 2 Eclipse projects: (1) my-library, which builds my-library-1.0.jar; and (2) my-deployable, which builds my-deployable-1.0.war.

my-library is a dependency listed in the pom.xml of my-deployable.
my-library has 2 dependencies (2 Apache commons JARs) referenced in its pom.xml.

my-library is registered to my Nexus and I can retrieve it.

When I build my-deployable-1.0.war using goals clean compile package, my-library-1.0.jar is included in the WEB-INF\lib folder, but its 2 dependencies are not being included in the WAR where they are expected. I am under the impression I do not need to specify them explicitly in the pom.xml of my-deployable because they are already listed in the pom.xml of my-library.

Why aren't dependencies for my-library JAR getting included in my-deployable WAR when built?

The pom.xml for my-library reads:

<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.my</groupId>
  <artifactId>my-library</artifactId>
  <version>1.0</version>
  <name>My Library</name>
  <description>This is my library JAR. It will be included in my WAR.</description>
  <dependencies>
    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>2.5</version>
      <scope>compile</scope>
    </dependency>
    <dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-compress</artifactId>
      <version>1.17</version>
      <scope>compile</scope>
    </dependency>
  </dependencies>
  <build>
    <testResources>
      <testResource>
        <directory>src/test/resources</directory>
        <excludes>
          <exclude>**/*.java</exclude>
        </excludes>
      </testResource>
      <testResource>
        <directory>src/test/java</directory>
        <excludes>
          <exclude>**/*.java</exclude>
        </excludes>
      </testResource>
    </testResources>
  </build>
</project>

The pom.xml for my-deployable reads:

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.12.RELEASE</version>
        <relativePath/>
    </parent>
    <groupId>com.my</groupId>
    <artifactId>my-deployable</artifactId>
    <version>1.0</version>
    <packaging>war</packaging>
    <name>My Deployable</name>
    <description>A deployable WAR for Spring Boot that has a dependency of my-library</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-activemq</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.my</groupId>
            <artifactId>my-library</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>