allow_auto_create body parameter not supported

[honzakral]

Elasticsearch version (bin/elasticsearch --version): 8.6.2

elasticsearch-py version (elasticsearch.__versionstr__): 8.6.2

Description of the problem including expected versus actual behavior: The allow_auto_create body parameter (documented for component templates, undocumented but supported for index templates) is not supported and there is no longer an option to pass in body for those APIs