Fix path for publish wiki workflow (opensearch-project#4310)

Signed-off-by: chawinphat <chawinphat@berkeley.edu>

Author: chawinphat

.github/workflows/publish-wiki.yml

@@ -21,3 +21,5 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: Andrew-Chen-Wang/github-wiki-action@v4
+        with:
+          path: docs/