Revert "Document that we actually emulate Miniflux 2.0.29"

This reverts commit d379aa2253.

docs/en/030_Supported_Protocols/005_Miniflux.md

@@ -15,7 +15,7 @@
 
 The Miniflux protocol is a fairly well-designed protocol supporting a wide variety of operations on newsfeeds, folders (termed "categories"), and articles; it also allows for user administration, and native OPML importing and exporting. Architecturally it is similar to the Nextcloud News protocol, but has more capabilities.
 
-Miniflux version 2.0.29 is emulated, though not all features are implemented
+Miniflux version 2.0.28 is emulated, though not all features are implemented
 
 # Missing features
 

lib/REST/Miniflux/V1.php

@@ -30,7 +30,7 @@ use Laminas\Diactoros\Response\TextResponse as GenericResponse;
 use Laminas\Diactoros\Uri;
 
 class V1 extends \JKingWeb\Arsse\REST\AbstractHandler {
-    public const VERSION = "2.0.29";
+    public const VERSION = "2.0.28";
 
     protected const ACCEPTED_TYPES_OPML = ["application/xml", "text/xml", "text/x-opml"];
     protected const ACCEPTED_TYPES_JSON = ["application/json"];