Publish Flux Software Bill of Materials (SBOM) in SPDX format

- generate SBOM for Flux Go modules with Syft
- publish the SBOM SPDX JSON files to GitHub releases with GoReleaser

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

.github/workflows/release.yaml

@@ -66,6 +66,10 @@ jobs:
       - name: Archive the OpenAPI JSON schemas
         run: |
           tar -czvf ./output/crd-schemas.tar.gz -C schemas .
+      - name: Setup Syft
+        uses: fluxcd/pkg//actions/sbom@main
+        with:
+          version: "v0.35.1"
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v1
         with:

.goreleaser.yml

@@ -40,6 +40,8 @@ archives:
     format: zip
     files:
       - none*
+sboms:
+  - artifacts: archive
 brews:
   - name: flux
     tap: