chore(deps): update sigstore/cosign-installer digest to bd2d118 (#471)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| sigstore/cosign-installer | action | digest | `c3667d9` -> `bd2d118` |

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.github/workflows/release-please.yaml

@@ -87,7 +87,7 @@ jobs:
     if: ${{ needs.release-please.outputs.release_created }}
     steps:
       - name: Install Cosign
-        uses: sigstore/cosign-installer@c3667d99424e7e6047999fb6246c0da843953c65
+        uses: sigstore/cosign-installer@bd2d1189b064bcddc3903176a807dcdba72d7fd0
 
       - name: Sign the image
         run: |