Use main Gradle project to define all dependencies versions

Question

I want to create one main Gradle project which hosts all project dependencies:

Main Gradle project:

plugins {
    id 'org.springframework.boot' version '2.6.4'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
    id 'maven-publish'
}

group = 'com.parent.dependencies'
version = '0.0.1'
sourceCompatibility = '11'

ext {
    set('springCloudVersion', "2021.0.1")
    artifactory_contextUrl = "http://192.168.1.112/repository"
}

repositories {
    mavenCentral()
    maven {
        url "${artifactory_contextUrl}/plugins-release"
        allowInsecureProtocol = true
    }
}

dependencies {
    implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
    implementation 'org.springframework.boot:spring-boot-starter-validation'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    implementation 'org.threeten:threetenbp:1.5.1'
    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    // Lombok
    compileOnly 'org.projectlombok:lombok:1.18.22'
    annotationProcessor 'org.projectlombok:lombok:1.18.22'
    testCompileOnly 'org.projectlombok:lombok:1.18.22'
    testAnnotationProcessor 'org.projectlombok:lombok:1.18.22'
    // Swagger
    implementation group: 'io.springfox', name: 'springfox-boot-starter', version: '3.0.0'
    implementation 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3'
    implementation group: 'com.netflix.hystrix', name: 'hystrix-core', version: '1.5.18'
    implementation group: 'org.springframework.security', name: 'spring-security-core', version: '5.6.1'
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'
}

dependencyManagement {
    imports {
        mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
    }
    resolutionStrategy {
        cacheDynamicVersionsFor 0, "seconds"
        cacheChangingModulesFor 0, "seconds"
    }
}

bootJar {
    enabled = false
}

publishing {
    publications {
        mavenJava(MavenPublication) {
            from components.java
        }
    }
    repositories {
        mavenLocal()
    }
}

test {
    useJUnitPlatform()
}

Sub project which will read all dependencies versions from parent Gradle project:

plugins {
    id 'org.springframework.boot' version '2.6.4'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
    id 'maven-publish'
}

group = 'com.child'
version = '0.0.1'
sourceCompatibility = '11'

ext {
    artifactory_contextUrl = "http://192.168.1.112/repository"
}

repositories {
    mavenCentral()
    maven {
        url "${artifactory_contextUrl}/plugins-release"
        allowInsecureProtocol = true
    }
}

dependencies {
    implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
    implementation 'org.springframework.boot:spring-boot-starter-validation'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    implementation 'org.threeten:threetenbp'
    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    // Lombok
    compileOnly 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'
    testCompileOnly 'org.projectlombok:lombok'
    testAnnotationProcessor 'org.projectlombok:lombok'
    // Swagger
    implementation 'io.springfox:springfox-boot-starter'
    implementation 'org.springframework.boot:spring-boot-starter-hateoas'
    implementation 'com.netflix.hystrix:hystrix-core'
    implementation 'org.springframework.security:spring-security-core'
    testImplementation 'org.junit.jupiter:junit-jupiter-api'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
}

dependencyManagement {
    imports {
        mavenBom "com.parent:com-parent-dependencies:0.0.1"
    }
}

bootJar {
    enabled = false
}

publishing {
    publications {
        mavenJava(MavenPublication) {
            from components.java
        }
    }
    repositories {
        mavenLocal()
    }
}

test {
    useJUnitPlatform()
}

When I try to compile the child project I get error:

Execution failed for task ':compileJava'.
> Could not resolve all files for configuration ':compileClasspath'.
   > Could not find org.threeten:threetenbp:.
     Required by:
         project :
   > Could not find io.springfox:springfox-boot-starter:.
     Required by:
         project :
   > Could not find com.netflix.hystrix:hystrix-core:.
     Required by:
         project :

Do you know how I can define properly the parent Gradle project with all dependencies versions and use the child project without defining dependencies versions?