Parent project hosted on Google Cloud Storage is not accessible

I have spring boot parent project hosted on Google Cloud Storage. I am using GoogleStorageWagon. I am able to deploy parent to GCS, But I am not able to download it.

Child project 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>

    <parent>
        <groupId>com.myorg.common</groupId>
        <artifactId>myorg-starter-parent</artifactId>
        <version>1.0.0</version>
    </parent>

    <artifactId>test-project</artifactId>
    <version>1.0.0</version>
    <name>test-service</name>


    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
    </dependencies>
    <build>
        <extensions>
            <extension>
                <groupId>com.gkatzioura.maven.cloud</groupId>
                <artifactId>google-storage-wagon</artifactId>
                <version>1.0</version>
            </extension>
        </extensions>
    </build>
    <repositories>
        <repository>
            <id>com.myorg.common</id>
            <url>gs://myorg-library</url>
        </repository>
    </repositories>
</project>

Error I am having is as below.

I've tried changing bucket policies as well as different account with admin access. But, I'm not able to resolve.

For anyone, who is having this problem,

Maven was trying to find google-storage-wagon in GCR, which was not hosted that. In order to tell maven to download this from Maven central, I had to this extension in .mvn/extensions.xml project folder.

.mvn/extensions.xml file will look like below:

<extensions>
    <extension>
        <groupId>com.gkatzioura.maven.cloud</groupId>
        <artifactId>google-storage-wagon</artifactId>
        <version>1.0</version>
    </extension>
</extensions>

Now, maven will download this plugin from maven central and after that it will download parent pom.xml from GCR using this plugin.