[vala] doap: Demote idle maintainers to authors

[Rico Tzschichholz <ricotz src gnome org>]

commit 359c971a3b74aaa04cabcd6a8aa7eeb725173283
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Thu Jul 14 17:27:07 2022 +0200

    doap: Demote idle maintainers to authors
    
    Requested by Michael Catanzaro <mcatanzaro gnome org>

 vala.doap | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/vala.doap b/vala.doap
index 25b905c9b..c36f446c7 100644
--- a/vala.doap
+++ b/vala.doap
@@ -38,20 +38,20 @@ binding.</description>
   <category rdf:resource="http://api.gnome.org/doap-extensions#core"; />
   <programming-language>Vala</programming-language>
 
-  <maintainer>
+  <author>
     <foaf:Person>
       <foaf:name>Jürg Billeter</foaf:name>
       <foaf:mbox rdf:resource="mailto:j bitron ch" />
       <gnome:userid>juergbi</gnome:userid>
     </foaf:Person>
-  </maintainer>
-  <maintainer>
+  </author>
+  <author>
     <foaf:Person>
       <foaf:name>Raffaele Sandrini</foaf:name>
       <foaf:mbox rdf:resource="mailto:rasa gmx ch" />
       <gnome:userid></gnome:userid>
     </foaf:Person>
-  </maintainer>
+  </author>
   <maintainer>
     <foaf:Person>
       <foaf:name>Rico Tzschichholz</foaf:name>