Multi arch image architecture

[gtchax]

Added multi arch image architecture build to github actions

[Copilot]

Pull Request Overview

This PR adds a GitHub Actions workflow to build and push multi-architecture Docker images, supporting both amd64 and arm64 platforms. The workflow automates Docker image builds on pushes to main/master branches, tags, and pull requests, with automatic tagging based on branch names, semantic versioning, and latest tags for the default branch.

Key Changes:

• Implements multi-architecture Docker image building for linux/amd64 and linux/arm64 platforms
• Configures automated Docker Hub publishing with metadata-driven tagging strategy
• Sets up Docker Buildx with QEMU for cross-platform builds and GitHub Actions caching

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[Copilot]

The step references steps.build.outputs.digest, but the build step (line 57-66) has no id defined. The step should reference steps.meta.outputs.digest or add id: build to the 'Build and push Docker image' step.

[lhotovy]

I would suggest to only leave trigger on push (and potentially workflow_dispatch), on pull request is probably unneccessary.