[ci] Remove workflow paths-ignore attribute (#7807)

It will cause our CI always waitting due to
we requests E2E contexts in .asf.yaml but
we set some ignore path on workflow e2e.

.github/workflows/e2e.yml

@@ -17,13 +17,7 @@
 
 on:
   pull_request:
-    paths-ignore:
-      - '**/*.md'
-      - 'dolphinscheduler-python/pydolphinscheduler'
   push:
-    paths-ignore:
-      - '**/*.md'
-      - 'dolphinscheduler-python/pydolphinscheduler'
     branches:
       - dev