Host meta fetchers now support NodeInfo 2.1

This seems unreleased, and doesn't really add anything useful,
but just seen it in the wild.

CHANGELOG.md

@@ -34,6 +34,8 @@
 
   The default `_media_type` is `text/markdown` except for ActivityPub originating posts it defaults to `text/html`. If the ActivityPub payload contains a `source`, that mediaType will be used instead.
   
+* Host meta fetchers now support NodeInfo 2.1
+
 ### Changed
 
 * **Backwards incompatible.** Lowest compatible Python version is now 3.6.

federation/hostmeta/fetchers.py

@@ -8,7 +8,7 @@ from federation.hostmeta.parsers import (
     parse_matrix_document, parse_misskey_document)
 from federation.utils.network import fetch_document
 
-HIGHEST_SUPPORTED_NODEINFO_VERSION = 2.0
+HIGHEST_SUPPORTED_NODEINFO_VERSION = 2.1
 
 
 def fetch_mastodon_document(host):