chore(deps): update anchore/sbom-action action to v0.20.1

| datasource  | package             | from    | to      |
| ----------- | ------------------- | ------- | ------- |
| github-tags | anchore/sbom-action | v0.17.2 | v0.20.1 |

Author: stackable-bot

.github/workflows/pr_cockpit.yml

@@ -109,7 +109,7 @@ jobs:
         uses: sigstore/cosign-installer@4959ce089c160fddf62f7b42464195ba1a56d382 # v3.6.0
 
       - name: Install syft
-        uses: anchore/sbom-action/download-syft@61119d458adab75f756bc0b9e4bde25725f86a7a # v0.17.2
+        uses: anchore/sbom-action/download-syft@9246b90769f852b3a8921f330c59e0b3f439d6e9 # v0.20.1
 
       - name: Setup Rust Cache
         uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3