ci: Bump anchore/sbom-action to 0.20.5

Author: Techassi

template/.github/workflows/build.yml.j2

@@ -378,7 +378,7 @@ jobs:
       - name: Install cosign
         uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
       - name: Install syft
-        uses: anchore/sbom-action/download-syft@cee1b8e05ae5b2593a75e197229729eabaa9f8ec # v0.20.2
+        uses: anchore/sbom-action/download-syft@da167eac915b4e86f08b264dbdbc867b61be6f0c # v0.20.5
       - name: Build Docker image and Helm chart
         run: |
           # Installing helm and yq on ubicloud-standard-8-arm only