chore: move relup_info to rel/relup

build

@@ -214,7 +214,7 @@ make_elixir_rel() {
 make_relup() {
     RELUP_TARGET_VSN="$(./pkg-vsn.sh "$PROFILE" --long)"
     export RELUP_TARGET_VSN
-    ./rebar3 emqx relup_gen --relup-dir=./relup_info
+    ./rebar3 emqx relup_gen --relup-dir=./rel/relup
     make rel -C _build/default/plugins/emqx_relup
 }