Provenance fix

[bluvulture]

This pull request makes a minor update to the Docker build process in the GitHub Actions workflow for releases. The change adds two new arguments to the docker build command to improve build reproducibility and platform targeting.

• Build process improvements:
  • .github/workflows/release.yml: Added --provenance=false to disable provenance generation and --platform "linux/${ARCH_TAG}" to specify the target platform during Docker builds.

[bluvulture]

@brusch it seems that there was a change recently on the runners and that provenance has been set by default

[Copilot]

Pull request overview

This PR updates the Docker build command in the release workflow to add explicit platform targeting and disable provenance attestation generation. These changes improve build reproducibility and address compatibility concerns in the multi-architecture Docker image build process.

Changes:

• Added --provenance=false flag to disable SLSA provenance attestation generation during Docker builds
• Added --platform "linux/${ARCH_TAG}" to explicitly specify the target platform (linux/amd64 or linux/arm64) for each build

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