chore(deps): update slsa-framework/slsa-github-generator action to v1.2.1

Author: renovate[bot]

.github/workflows/release.yml

@@ -40,7 +40,7 @@ jobs:
       actions: read # To read the workflow path.
       id-token: write # To sign the provenance.
       contents: write # To add assets to a release.
-    uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@bdd89e60dc5387d8f819bebc702987956bcd4913 # tag=v1.2.0
+    uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@dc705baf82c5178c9d1555594b0652f569e22779 # tag=v1.2.1
     with:
       base64-subjects: "${{ needs.goreleaser.outputs.hashes }}"
       upload-assets: true # upload to a new release