chore(aiconfig): collect aiconfig material (#2930)

Signed-off-by: Jose I. Paris <jiparis@chainloop.dev>

Author: jiparis

.github/workflows/contracts/chainloop-vault-author-verification.yaml

@@ -17,3 +17,4 @@ spec:
     - ref: slsa-checks
       with:
         runner: GITHUB_ACTION
+    - ref: ai-config-policies