Try out attestation in CI

Author: hynek

.github/workflows/ci.yml

@@ -12,6 +12,10 @@ env:
   SETUPTOOLS_SCM_PRETEND_VERSION: "1.0" # avoid warnings about shallow checkout
   UV_SYSTEM_PYTHON: "true"  # ensure action can deal with this set
 
+permissions:
+  id-token: write
+  attestations: write
+
 jobs:
   check-argon2-cffi-bindings:
     name: Build & verify the argon2-cffi-bindings package.
@@ -53,6 +57,7 @@ jobs:
         with:
           path: structlog
           upload-name-suffix: "-structlog"
+          attest-build-provenance-github: "true"
 
       - run: echo Packages can be found at ${{ steps.baipp.outputs.dist }}