Swap to Environment Files

src/install-elixir

@@ -7,4 +7,4 @@ cd $RUNNER_TEMP
 wget -q https://repo.hex.pm/builds/elixir/${1}${2}.zip
 unzip -d .setup-elixir/elixir ${1}${2}.zip
 rm ${1}${2}.zip
-echo "::add-path::$(pwd)/.setup-elixir/elixir/bin"
+echo "$(pwd)/.setup-elixir/elixir/bin" >> $GITHUB_PATH

src/install-otp

@@ -9,4 +9,4 @@ mkdir -p .setup-elixir/otp
 tar zxf otp.tar.gz -C .setup-elixir/otp --strip-components=1
 rm otp.tar.gz
 .setup-elixir/otp/Install -minimal $(pwd)/.setup-elixir/otp
-echo "::add-path::$(pwd)/.setup-elixir/otp/bin"
+echo "$(pwd)/.setup-elixir/otp/bin" >> $GITHUB_PATH