CI: Run docs pipeline only upon changes to root markdown files (#48433)

* Run docs pipeline only upon changes to root markdown files

* Include latest/json

scripts/drone/pipelines/docs.star

@@ -66,8 +66,10 @@ def trigger_docs():
         ],
         'paths': {
             'include': [
+                '*.md',
                 'docs/**',
                 'packages/**',
+                'latest.json',
             ],
         },
     }

scripts/drone/pipelines/pr.star

@@ -62,7 +62,9 @@ trigger = {
     ],
     'paths': {
         'exclude': [
+            '*.md',
             'docs/**',
+            'latest.json',
         ],
     },
 }