ci: block auto-merge before SPL downstream tests are all green (#34326)

* ci: block auto-merge before all spl downstream tests are green

* follow Github Actions triggering rule

.mergify.yml

@@ -61,6 +61,19 @@ pull_request_rules:
         - or:
           - -files~=(\.rs|Cargo\.toml|Cargo\.lock)$
           - check-success=clippy (macos-latest)
+        - or:
+          - -files~=(\.rs|Cargo\.toml|Cargo\.lock|cargo-build-bpf|cargo-test-bpf|cargo-build-sbf|cargo-test-sbf|ci/downstream-projects/run-spl.sh|.github/workflows/downstream-project-spl.yml)$
+          - and:
+            - status-success=cargo-test-sbf (token/program)
+            - status-success=cargo-test-sbf (instruction-padding/program, token/program-2022, token/program-2022-test)
+            - status-success=cargo-test-sbf (associated-token-account/program, associated-token-account/program-test)
+            - status-success=cargo-test-sbf (token-upgrade/program)
+            - status-success=cargo-test-sbf (feature-proposal/program)
+            - status-success=cargo-test-sbf (governance/addin-mock/program, governance/program)
+            - status-success=cargo-test-sbf (memo/program)
+            - status-success=cargo-test-sbf (name-service/program)
+            - status-success=cargo-test-sbf (stake-pool/program)
+            - status-success=cargo-test-sbf (single-pool/program)
     actions:
       merge:
         method: squash