Update integrations

Author: anxdpanic

.github/workflows/submit-release.yml

@@ -62,6 +62,7 @@ jobs:
       - name: Staging for Official Repository (Matrix)
         id: stage-matrix
         run: |
+          rm changelog.txt
           xmlstarlet ed -L -u '//import[@addon="xbmc.python"]/@version' -v "3.0.0" addon.xml
           version=$(xmlstarlet sel -t -v 'string(/addon/@version)' addon.xml)
           xmlstarlet ed -L -u '/addon/@version' -v "${version}+matrix.1" addon.xml