Update deprecated developer_name in metainfo

data/cafe.avery.Delfin.metainfo.xml.in

@@ -50,8 +50,9 @@
   <url type="translate">https://translate.codeberg.org/projects/delfin/</url>
   <url type="vcs-browser">https://codeberg.org/avery42/delfin</url>
 
-  <!-- Deprecated field - keep until libadwaita and flatpak updated -->
-  <developer_name>Avery</developer_name>
+  <developer id="avery.cafe">
+    <name>Avery</name>
+  </developer>
 
   <update_contact>delfin@avery.cafe</update_contact>
 

data/meson.build

@@ -12,17 +12,15 @@ metainfo_file = configure_file(
   },
 )
 
-# Validate MetaInfo file
-# Skipping this for now - we use developerr_name, which is deprecated but still used by libadwaita
-# if ascli_exe.found()
-#   test('validate metainfo file',
-#         ascli_exe,
-#         args: ['validate',
-#                '--no-net',
-#                '--strict',
-#                metainfo_file]
-#   )
-# endif
+if ascli_exe.found()
+  test('validate metainfo file',
+    ascli_exe,
+    args: ['validate',
+      '--no-net',
+      '--strict',
+      metainfo_file]
+  )
+endif
 
 install_data(
   metainfo_file,