update workflows

.github/workflows/ci-app.yml

@@ -7,6 +7,7 @@ on:
       - rc/**
       - changeset-release/**
     paths:
+      - .github/mergify.yml
       - .github/workflows/ci-app.yml
       - .eslint*
       - tsconfig.base.json

.github/workflows/ci-slackbot-proxy.yml

@@ -7,6 +7,7 @@ on:
       - rc/**
       - support/prepare-v**
     paths:
+      - .github/mergify.yml
       - .github/workflows/ci-slackbot-proxy.yml
       - .eslint*
       - tsconfig.base.json