refactor: update web_pipe() to use web_redirect()

quickget

@@ -1440,13 +1440,8 @@ function check_hash() {
 }
 
 function web_pipe() {
-    # Check for URL redirections
-    # Output to nonexistent directory so the download fails fast
-    local URL="${1}"
-    local REDIRECT_URL=$(curl --silent --location --fail "${URL}" --write-out %{url_effective} --output /var/cache/${RANDOM}/${RANDOM})
-    if [ "${REDIRECT_URL}" != "${URL}" ]; then
-        URL="${REDIRECT_URL}"
-    fi
+    local URL=""
+    URL=$(web_redirect "${1}")
     curl --silent --location "${URL}"
 }