Update anchore/sbom-action action to v0.21.1

| datasource  | package             | from    | to      |
| ----------- | ------------------- | ------- | ------- |
| github-tags | anchore/sbom-action | v0.21.0 | v0.21.1 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -82,7 +82,7 @@ jobs:
         if: github.event_name != 'pull_request'
 
       - name: Download Syft
-        uses: anchore/sbom-action/download-syft@a930d0ac434e3182448fe678398ba5713717112a # v0.21.0
+        uses: anchore/sbom-action/download-syft@0b82b0b1a22399a1c542d4d656f70cd903571b5c # v0.21.1
         if: github.ref_type == 'tag'
 
       - name: Install Cosign

.github/workflows/release.yml

@@ -84,7 +84,7 @@ jobs:
         if: github.event_name != 'pull_request'
 
       - name: Download Syft
-        uses: anchore/sbom-action/download-syft@a930d0ac434e3182448fe678398ba5713717112a # v0.21.0
+        uses: anchore/sbom-action/download-syft@0b82b0b1a22399a1c542d4d656f70cd903571b5c # v0.21.1
         if: github.ref_type == 'tag'
 
       - name: Install Cosign