Move expression: {blah} no value System.out to logs

[JackPGreen]

When running the versions:set goal, the console is full of expression: {blah} no value messages.

Further investigation identified this occurs when a pom contains a property declared in a parent pom.

In PomHelper#getRawModel:

versions/versions-common/src/main/java/org/codehaus/mojo/versions/api/PomHelper.java

Line 127 in be0e260

* Gets the raw model before any interpolation what-so-ever.

As such the parent properties are no longer accessible downstream.

Based on this, being unable to evaluate an expression is not unexpected and does not need to appear in any non-debug log.

This can be reproduced with a parent:

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.me</groupId>
    <artifactId>parent</artifactId>
    <packaging>pom</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <properties>
        <scala.version>2.13</scala.version>
    </properties>
</project>

And root:

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.me</groupId>
        <artifactId>parent</artifactId> 
        <version>0.0.1-SNAPSHOT</version>
        <relativePath>parent/pom.xml</relativePath>
    </parent>
    <artifactId>root</artifactId>
    <packaging>pom</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <modules>
        <module>parent</module>
    </modules>
    <properties>
        <generateBackupPoms>false</generateBackupPoms>
        <newVersion>123</newVersion>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.apache.kafka</groupId>
            <artifactId>kafka_${scala.version}</artifactId>
            <version>3.6.1</version>
        </dependency>
    </dependencies>
</project>