refs platform#3822: update Docker-in-Docker image configuration

[FabrizioCafolla]

PR Type

Enhancement

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Description

• Replace hardcoded Docker-in-Docker image with configurable variables

• Add new DOCKER_DIND_IMAGE_* variables for registry, repository, and tag

• Enable customization of dind service image in GitLab CI template

• Improve template flexibility and maintainability

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Changes walkthrough 📝

	Relevant files
Configuration changes	.gitlab-ci-template.yml Parameterize Docker-in-Docker service image configuration templates/.gitlab-ci-template.yml Replace hardcoded docker:26.1.0-dind-alpine3.19 with variable-based image reference Add three new variables: DOCKER_DIND_IMAGE_REGISTRY, DOCKER_DIND_IMAGE_REPOSITORY, DOCKER_DIND_IMAGE_TAG Include documentation comments explaining the new dind image configuration variables +7/-1

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[sparkfabrik-ai-bot]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Missing Alias The Docker-in-Docker service configuration is missing an alias definition, which may cause issues with service discovery and communication between containers in the GitLab CI pipeline. - name: ${DOCKER_DIND_IMAGE_REGISTRY}/${DOCKER_DIND_IMAGE_REPOSITORY}:${DOCKER_DIND_IMAGE_TAG}

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