Ensure that elixir gets updated

src/freedombone-app-pleroma

@@ -708,6 +708,10 @@ function upgrade_pleroma {
         cp $PLEROMA_DIR/config/emoji.txt $PLEROMA_DIR/config/emoji_prev.txt
     fi
 
+    apt-get -yq update
+    apt-get -yq install --only-upgrade esl-erlang
+    apt-get -yq install --only-upgrade elixir erlang-xmerl erlang-dev erlang-parsetools
+
     function_check set_repo_commit
     set_repo_commit $PLEROMA_DIR "pleroma commit" "$PLEROMA_COMMIT" $PLEROMA_REPO
     chown -R pleroma:pleroma $PLEROMA_DIR