change env name due to latest PIO

Author: luc-github

platformio.ini

@@ -64,7 +64,7 @@ lib_ignore =
     ESP32SSPD
 
 ;https://github.com/platformio/platform-espressif8266/releases
-[env:esp01s_160mhz-2.7.4]
+[env:esp01s_160mhz_2_7_4]
 platform = [email protected]
 board = esp01_1m
 framework = arduino
@@ -87,7 +87,7 @@ lib_ignore =
     ESP32NetBIOS
     ESP32SSPD
 
-[env:esp01s_160mhz-2.5.2]
+[env:esp01s_160mhz_2_5_2]
 platform = [email protected]
 platform_packages = [email protected]
 board = esp01_1m