OreSatFile depends on GPIO and fails if real GPIO exist

[ThirteenFish]

I was trying to run edl_file_upload.py on station.uniclogs.org and it failed with the following exception:

Traceback (most recent call last):
  File "/home/uniclogs/oresat-c3-software/scripts/./edl_file_upload.py", line 41, in <module>
    from olaf import OreSatFile
  File "/home/uniclogs/oresat-c3-software/.venv/lib/python3.11/site-packages/olaf/__init__.py", line 18, in <module>
    from .board.gpio import GPIO_HIGH, GPIO_IN, GPIO_LOW, GPIO_OUT, Gpio, GpioError
  File "/home/uniclogs/oresat-c3-software/.venv/lib/python3.11/site-packages/olaf/board/gpio.py", line 19, in <module>
    class Gpio:
  File "/home/uniclogs/oresat-c3-software/.venv/lib/python3.11/site-packages/olaf/board/gpio.py", line 34, in Gpio
    with open(f"{_GPIO_DIR_PATH}/{i}/label", "r") as f:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: '/sys/class/gpio/gpio595/label'

The script uses only OreSatFile and should not depend on the state of GPIO for successful import.

For reference:

uniclogs@ebv1-station:~/oresat-c3-software/scripts $ ls /sys/class/gpio
export   gpio584  gpio588  gpio592  gpio595  gpio598  gpiochip512  gpiochip586  unexport
gpio582  gpio585  gpio589  gpio593  gpio596  gpio599  gpiochip570  gpiochip594
gpio583  gpio587  gpio591  gpio594  gpio597  gpio601  gpiochip578  gpiochip602