Update developer name tag in metainfo

The old <developer_name> tag is deprecated.

Author: dfandrich

io.github.dfandrich.gpscorrelate.metainfo.xml.in

@@ -41,7 +41,7 @@
     <kudo>UserDocs</kudo>
   </kudos>
   <translation type="gettext">gpscorrelate</translation>
-  <developer_name>Daniel Fandrich</developer_name>
+  <developer id="com.telarity.dan"><name>Daniel Fandrich</name></developer>
   <content_rating type="oars-1.1" />
   <releases>
     <release version="@PACKAGE_VERSION@" date="@DATE@">