build(deps): bump sigstore/sigstore-conformance from 0.0.11 to 0.0.12…

… in the actions group (#1228)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/conformance.yml

@@ -24,7 +24,7 @@ jobs:
       - name: install sigstore-python
         run: python -m pip install .
 
-      - uses: sigstore/sigstore-conformance@ee4de0e602873beed74cf9e49d5332529fe69bf6 # v0.0.11
+      - uses: sigstore/sigstore-conformance@e472219febb4fe9c6ce62033be8a811963ef4f27 # v0.0.12
         with:
           entrypoint: ${{ github.workspace }}/test/integration/sigstore-python-conformance
           xfail: "test_verify_with_trust_root test_verify_dsse_bundle_with_trust_root" # see issue 821