test: repin the production acceptance policy digest after rebase

The pinned digest covers the canonical JSON of production_acceptance_policy().
Rebasing onto main combined main's policy with this branch's manifest_schema
bump, so neither the old branch pin nor main's pin is correct for the result.

Recomputing the policy on both sides shows exactly one field differs:

    manifest_schema: openadapt.production-acceptance/v1 -> /v2

which is this branch's intended change. The new pin is the digest of that
policy.

Author: abrichr

tests/test_import_production_acceptance.py

@@ -2474,7 +2474,7 @@ def test_production_acceptance_target_scope_map_is_closed() -> None:
         "openadapt": "qualified_workflow_launcher_release",
     }
     assert MODULE.production_acceptance_policy_sha256() == (
-        "sha256:6cd6cfeeb6d430c0e9d3a4a55770cb2d9962c8769edc52fac5cc46bff31bee21"
+        "sha256:7aadc8434aeea62e88a5d8622e68a3dd325b28a8ca90480b561d40ace0995b48"
     )