Corrected a typo In options list (ansible#81655)

There was a typo in the word "container", it was spelled "contianer"

Author: ed7789

lib/ansible/plugins/filter/extract.yml

@@ -12,7 +12,7 @@ DOCUMENTATION:
       description: Index or key to extract.
       type: raw
       required: true
-    contianer:
+    container:
       description: Dictionary or list from which to extract a value.
       type: raw
       required: true