chore(deps): bump anchore/sbom-action from 0.20.1 to 0.20.6

Bumps [anchore/sbom-action](https://github.com/anchore/sbom-action) from 0.20.1 to 0.20.6.
- [Release notes](https://github.com/anchore/sbom-action/releases)
- [Changelog](https://github.com/anchore/sbom-action/blob/main/RELEASE.md)
- [Commits](anchore/sbom-action@9246b90...f8bdd1d)

---
updated-dependencies:
- dependency-name: anchore/sbom-action
  dependency-version: 0.20.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/sbom.yml

@@ -29,7 +29,7 @@ jobs:
         uses: sigstore/cosign-installer@3454372f43399081ed03b604cb2d021dabca52bb # v3.8.2
 
       - name: Install the syft command
-        uses: anchore/sbom-action/download-syft@9246b90769f852b3a8921f330c59e0b3f439d6e9 # v0.20.1
+        uses: anchore/sbom-action/download-syft@f8bdd1d8ac5e901a77a92f111440fdb1b593736b # v0.20.6
 
       - name: Install the crane command
         uses: IAreKyleW00t/crane-installer@7a098cf907ebbb438b174e1e01cab6f732b492f9 # v1.3