fix(scripts): use updated erl dep download url (#97)

* fix(scripts): use updated erl dep download url

* fix(scripts): add yum clean for npm

scripts/build

@@ -37,14 +37,15 @@ function do_install(){
     yum install -y -q unixODBC-devel || exit 1
 
     echo "==> Installing Erlang ${ERL_VERSION}.."
-    wget --no-verbose -P /tmp/ "https://packages.erlang-solutions.com/erlang/esl-erlang/FLAVOUR_1_general/esl-erlang_${ERL_VERSION}-1~centos~7_amd64.rpm"
+    wget --no-verbose -P /tmp/ "https://packages.erlang-solutions.com/erlang/rpm/centos/7/x86_64/esl-erlang_${ERL_VERSION}-1~centos~7_amd64.rpm"
     rpm -Uvh "/tmp/esl-erlang_${ERL_VERSION}-1~centos~7_amd64.rpm"
 
     echo "==> Installing Elixir ${ELIXIR_VERSION}"
     wget --no-verbose -P /tmp/ "https://github.com/elixir-lang/elixir/releases/download/v${ELIXIR_VERSION}/Precompiled.zip"
     unzip /tmp/Precompiled.zip -d /usr/local
 
     echo "==> Installing git, node, npm"
+    yum clean all
     curl -sL https://rpm.nodesource.com/setup_10.x | bash -
     yum install -y git nodejs --enablerepo=epel
 }