python-ecosys/aiohttp: fix header - case-insensitivity

[FuNK3Y]

According to RFC (https://datatracker.ietf.org/doc/html/rfc7230#section-3.2) header names are case-insensitive.

This PR makes sure that the module behaves consistently regardless of the casing of Content-type and Content-Length (other headers are not considered by the module)

Without this fix, the client seems to wait for the connection termination (~10 seconds) prior to returning any content if the casing of Content-Length is different.

[FuNK3Y]

The pipeline is failing for an unrelated reason (version of GHA upload artifact)

[dpgeorge]

Thanks for the fix. This is necessary as you point out, to comply with HTTP spec.

However I have some suggestions (inline) to optimise it for MicroPython.

[FuNK3Y]

@dpgeorge thanks for the proposed changes. I implemented those and tested those successfully.

[dpgeorge]

Great, thanks for updating!

[FuNK3Y]

@dpgeorge This should have generated a new version of the module - right? It shows here that the version increased:

micropython-lib/python-ecosys/aiohttp/manifest.py

Line 3 in 5b496e9

version="0.0.5",

Here is what I get when I try to install the package:

mip.install("aiohttp",version="0.0.5")
Installing aiohttp (0.0.5) from https://micropython.org/pi/v2 to /lib
Package not found: https://micropython.org/pi/v2/package/6/aiohttp/0.0.5.json
Package may be partially installed

There seems to be nothing above https://micropython.org/pi/v2/package/6/aiohttp/0.0.3.json