[file-roller] doap: Add myself as co-maintainer

[Jan Tojnar <jtojnar src gnome org>]

commit 1d6734e1845cbc0edc0fe2ceeeb29922b45d758f
Author: Jan Tojnar <jtojnar gmail com>
Date:   Wed Mar 30 19:17:57 2022 +0200

    doap: Add myself as co-maintainer

 file-roller.doap | 7 +++++++
 1 file changed, 7 insertions(+)
---
diff --git a/file-roller.doap b/file-roller.doap
index 1f044162..85a0c403 100644
--- a/file-roller.doap
+++ b/file-roller.doap
@@ -62,4 +62,11 @@
       <gnome:userid>paobac</gnome:userid>
     </foaf:Person>
   </maintainer>
+  <maintainer>
+    <foaf:Person>
+      <foaf:name>Jan Tojnar</foaf:name>
+      <foaf:mbox rdf:resource="mailto:jtojnar gmail com"/>
+      <gnome:userid>jtojnar</gnome:userid>
+    </foaf:Person>
+  </maintainer>
 </Project>