maven aggregate don´t allow own results folder

[xexplorer42]

I'm submitting a ...

• bug report
• feature request
• support request => Please do not submit support request here, see note at the top of this template.

What is the current behavior?

maven allure-maven Goal: allure:aggregate requires a result folder in the target folder, which is not configurable

Code:

allure-maven/src/main/java/io/qameta/allure/maven/AlureAggregateMojo.java

Line 41 in 817846d

Path target = Paths.get(child.getBuild().getDirectory());

It is not possible to aggregate several Maven modules if you have defined your own results folder
like this:
<resultsDirectory>${project.basedir}/allure-results</resultsDirectory>

If the current behavior is a bug, please provide the steps to reproduce and if possible a mvn allure:aggregate

What is the expected behavior?

results folder can be outside of the target folder

What is the motivation / use case for changing the behavior?

we wan´t to save the results and target is cleaned up during normal maven prozess

Please tell us about your environment:

• Allure version: 2.13.0
• Test framework: Junit5
• Allure adaptor: allure-junit@2.13.0
• Generate report using: allure-maven@2.10.0

Other information

Maven POM:

<reporting>
	<plugins>
		<plugin>
			<artifactId>maven-jxr-plugin</artifactId>
			<version>2.3</version>
			<reportSets>
				<reportSet>
					<id>aggregate</id>
					<inherited>false</inherited>
					<reports>
						<report>aggregate</report>
					</reports>
				</reportSet>
			</reportSets>
		</plugin>
		<plugin>
			<artifactId>maven-project-info-reports-plugin</artifactId>
			<version>3.0.0</version>
		</plugin>
		<plugin>
			<groupId>io.qameta.allure</groupId>
			<artifactId>allure-maven</artifactId>
			<version>${allure-maven.version}</version>
			<configuration>
				<allureDownloadUrl>https://repo.maven.apache.org/maven2/io/qameta/allure/allure-commandline/${allure.version}/allure-commandline-${allure.version}.zip</allureDownloadUrl>
				<reportVersion>2.10.0</reportVersion>
				<resultsDirectory>${project.build.directory}/allure-results/</resultsDirectory>
				<reportDirectory>${project.build.directory}/site/allure</reportDirectory>
			</configuration>
		</plugin>
	</plugins>
</reporting>