IoT_Environment_Sensor code is out of date

This projects code references an import for esp32spi_reqeusts that doesn't exist any more https://github.com/adafruit/Adafruit_Learning_System_Guides/blob/7406a2bb4a83ee7978cfd2502732ba7d1608af66/IoT_Environment_Sensor/aio.py#L25

It needs updated to use `adafruit_requests` and perhaps other updates as well.

Open IoT_Environment_Sensor/aio.py at the import on line 25 and inspect references to esp32spi_reqeusts. Check whether related outdated references remain, then update the project to use adafruit_requests. Done means the obsolete import is removed and the sensor example uses the current requests module.

Written by the indexing model from the issue text.