Bump anchore/sbom-action from 0.20.2 to 0.20.4 (#577)

---
updated-dependencies:
- dependency-name: anchore/sbom-action
  dependency-version: 0.20.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -53,7 +53,7 @@ jobs:
         TERM: xterm
 
     - name: Generate SBOM
-      uses: anchore/sbom-action@cee1b8e05ae5b2593a75e197229729eabaa9f8ec # v0.20.2
+      uses: anchore/sbom-action@7b36ad622f042cab6f59a75c2ac24ccb256e9b45 # v0.20.4
       with:
         artifact-name: build-${{ matrix.os-name }}.spdx.json
         output-file: ./artifacts/build.spdx.json