fix: speedtest binary release, shell format

cn.sh

@@ -88,7 +88,7 @@ speedtest_setup() {
     [[ -e './st-temp/speedtest' ]] && return
     echo -e "正在获取Speedtest-cli...\c"
     mkdir -p ./st-temp/speedtest-cli
-    wget --no-check-certificate -qO ./st-temp/speedtest.tgz https://bintray.com/ookla/download/download_file?file_path=ookla-speedtest-1.0.0-$(uname -m)-linux.tgz > /dev/null 2>&1
+    wget --no-check-certificate -qO ./st-temp/speedtest.tgz https://install.speedtest.net/app/cli/ookla-speedtest-1.0.0-$(uname -m)-linux.tgz > /dev/null 2>&1
     tar zxvf ./st-temp/speedtest.tgz -C ./st-temp/speedtest-cli/ > /dev/null 2>&1
     mv ./st-temp/speedtest-cli/speedtest ./st-temp/speedtest-cli/speedtest.5 ./st-temp/
     chmod a+rx ./st-temp/speedtest
@@ -216,12 +216,8 @@ init() {
     get_server
 }
 
-main() {
 init
 select_isp
 clear
 runtest
 clear_env
-}
-
-main