restic/changelog/unreleased/issue-4983

Enhancement: add SLSA provenance to the Docker images

Restic's Docker image build workflow now includes SLSA provenance generation. 
This enhancement improves the security and traceability of the Docker images'
build process.

https://github.com/restic/restic/issues/4983
https://github.com/restic/restic/pull/4999
docker: add SLSA provenance to .github workflow * the id-token of the GitHub Actions workflow will be used for image signing * replace branch-based tagging with SHA-based tagging since, branch names are mutable, SLSA provenance requires immutable tagging * use official SLSA framework Github Reusable workflow docker: fix incorrect registry name in image output step * use REGISTRY environment variable instead of IMAGE_REGISTRY docker: revert change to remove branch tag 2024-09-15 22:44:00 +05:30			`Enhancement: add SLSA provenance to the Docker images`

			`Restic's Docker image build workflow now includes SLSA provenance generation.`
			`This enhancement improves the security and traceability of the Docker images'`
			`build process.`

			`https://github.com/restic/restic/issues/4983`
			`https://github.com/restic/restic/pull/4999`