uplift(release): chore(ci): add tag prefix to in-app changelog notes

Author: coreycb

scripts/ci/templates/changelog_master.xml

@@ -1,6 +1,8 @@
     <release version="{{ version }}" versioncode="{{ versioncode }}" date="{{ date }}">
-{%- for note in long_notes %}
-        <change>{{ note }}</change>
+{%- for tag, tag_notes in notes.items() %}
+{%- for note in tag_notes %}
+        <change>{{ tag }}: {{ note.text }}</change>
+{%- endfor %}
 {%- endfor %}
     </release>