Add support for WIZNET5K ssl

[justmobilize]

Updated to support SSL everywhere. To test you need:

cp: main adafruit/circuitpython#8954 (merged)
wiznet: main adafruit/Adafruit_CircuitPython_Wiznet5k#157 (merged)

If this looks good to people (and once the versions are determined), I would like to add tests before it's merged.

[justmobilize]

@anecdata if you have time, would you be willing to try this?

[anecdata]

I'm having trouble getting the right pieces together for this. Here's what's installed:
Adafruit CircuitPython 9.1.0-beta.0-27-g4ede914d45 on 2024-04-17; FeatherS3 with ESP32S3 (PR #8954)
adafruit_requests v3.2.5 (latest)
adafruit_connection_manager (this PR #9)
adafruit_wiznet5k v5.2.0 (includes #157, but not #151)

code...

import traceback
import ssl
import board
import digitalio
from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K
import adafruit_requests
import adafruit_connection_manager

TEXT_URL = "https://httpbin.org/get"

spi_bus = board.SPI()
cs = digitalio.DigitalInOut(board.A4)
mac = f'de:ad:be:ef:fe:{(252):02x}'  # I need this to avoid DHCP collisions
radio = WIZNET5K(spi_bus, cs, mac=mac, debug=False)
pool = adafruit_connection_manager.get_radio_socketpool(radio)
ssl_context = adafruit_connection_manager.get_radio_ssl_context(radio)
requests = adafruit_requests.Session(pool, ssl_context)

while True:
    print(f"Fetching from {TEXT_URL} ... ", end="")
    with requests.get(TEXT_URL) as resp:
        print(f'{resp.status_code}')
    time.sleep(5)

result:

Fetching from https://httpbin.org/get ... Traceback (most recent call last):
  File "code.py", line 23, in <module>
  File "adafruit_requests.py", line 591, in get
  File "adafruit_requests.py", line 525, in request
  File "adafruit_connection_manager.py", line 256, in get_socket
  File "adafruit_wiznet5k/adafruit_wiznet5k_socket.py", line 195, in getaddrinfo
  File "adafruit_wiznet5k/adafruit_wiznet5k_socket.py", line 210, in gethostbyname
AttributeError: 'NoneType' object has no attribute 'get_host_by_name'

I haven't used CM too much yet, maybe there's something wrong in the code.

[justmobilize]

@anecdata I found the issue (working on too many things at the same time). I'll update this PR tonight

[anecdata]

Yes, I fully understand, there are so many inter-related changes going on, it's hard to keep track of what goes with what.

[justmobilize]

Especially when it's one's own fault. I keep doing things here like I do professionally and thinking things will get merged and released quickly...

[justmobilize]

@anecdata this should work now... Sorry about that

[anecdata]

That did it... "200 OK" every 5 seconds :-)

[dhalbert]

Not tested. Just one style thing.

[justmobilize]

@dhalbert updated

[dhalbert]

Thanks!