update mergify rules

.mergify.yml

@@ -1,22 +1,19 @@
 queue_rules:
   - name: default
     merge_conditions:
-      - check-success=Evaluate flake.nix
+      - check-success=buildbot/nix-eval
       - check-success=build (macos-latest)
       - check-success=build (ubuntu-latest)
       - check-success=build_and_test (macos-latest)
       - check-success=build_and_test (ubuntu-latest)
       - check-success=build_and_test (windows-2019)
+      - check-success=clippy
       - check-success=clippy_check
-      - check-success=devShell default [x86_64-linux]
       - check-success=gh-pages
-      - check-success=package default [x86_64-linux]
-      - check-success=package docs [x86_64-linux]
 defaults:
   actions:
     queue:
-      allow_merging_configuration_change: true
-      method: rebase
+      merge_method: rebase
 pull_request_rules:
   - name: merge using the merge queue
     conditions: