[calls] metainfo: "mimetypes" tag is deprecated

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 7b904dc324b825b6076d89024f903e84f16591d7
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Tue Oct 19 18:08:21 2021 +0200

    metainfo: "mimetypes" tag is deprecated
    
    See
    https://www.freedesktop.org/software/appstream/docs/chap-Metadata.html#tag-mimetypes

 data/org.gnome.Calls.metainfo.xml | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/data/org.gnome.Calls.metainfo.xml b/data/org.gnome.Calls.metainfo.xml
index c0c07142..480d0457 100644
--- a/data/org.gnome.Calls.metainfo.xml
+++ b/data/org.gnome.Calls.metainfo.xml
@@ -45,11 +45,11 @@
         <category>Audio</category>
     </categories>
 
-    <mimetypes>
-        <mimetype>x-scheme-handler/tel</mimetype>
-        <mimetype>x-scheme-handler/sip</mimetype>
-        <mimetype>x-scheme-handler/sips</mimetype>
-    </mimetypes>
+    <provides>
+        <mediatype>x-scheme-handler/tel</mediatype>
+        <mediatype>x-scheme-handler/sip</mediatype>
+        <mediatype>x-scheme-handler/sips</mediatype>
+    </provides>
 
     <content_rating type="oars-1.1">
         <content_attribute id="violence-cartoon">none</content_attribute>