Commits created by CONFIG_GEN_PROVENANCE use date timestamp (Jan 1, 1970)

[deobieta]

When sourcetool creates a PR to enroll a repository with the SLSA framework via CONFIG_GEN_PROVENANCE control, the commit is created with a timestamp of Thu Jan 1 00:00:00 1970 +0000, which disrupts the natural chronological order of git log history.

Author: deobieta deobieta@users.noreply.github.com
Date: Thu Jan 1 00:00:00 1970 +0000

Add SLSA Source Provenance Workflow

This pull request adds a new workflow to the repository to generate SLSA Source provenance data on every push.

Every time a new commit merges to the specified branch, attestations will be automatically signed and stored in git notes in this repository.

Note: This is an automated PR created using the SLSA sourcetool utility.

Signed-off-by: deobieta deobieta@users.noreply.github.com