asf.yaml: drop integration_id so the Required checks ruleset applies

.asf.yaml

@@ -51,15 +51,16 @@ github:
         - type: required_status_checks
           parameters:
             strict_required_status_checks_policy: false
+            # No integration_id: leaving it out means any source. .asf.yaml
+            # passes raw ruleset values to the API as strings except for a
+            # fixed set of keys, and a string integration_id is rejected.
             required_status_checks:
               # allowlist_approval.yml: an allow-list PR needs a maintainer's
               # approval; other PRs pass it at once.
               - context: approval
-                integration_id: -1
               # verify_*_action.yml: rebuilds an allow-list PR's action and
               # compares it with the published one; other PRs pass it at once.
               - context: verify
-                integration_id: -1
 
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