add official support to Python 3.13

[emdneto]

Description

py313 issues

• sqlalchemy -- sqlalchemy: bump greenlet version in test requirements #3139
• grpc -- grpc: bump grpcio version in test-requirements #3140
• asyncpg -- asyncpg: bump version in test-requirements #3146
• Celery -- celery: remove deprecated import of ContextManager from typing #3145
• psycopg -- bump psycopg versions in test-requirements to support py313 #3147
• psycopg2 -- bump psycopg versions in test-requirements to support py313 #3147
• aiopg -- bump psycopg versions in test-requirements to support py313 #3147
• falcon - opentelemetry-instrumentation-falcon: expand supported version to v4 #3086
• cassandra -- cassandra: fix tests for py313 #3152
• prometheus-remote-write -- prometheus-remote-write: bump cramjam to 2.8.4 in test-requirements #3157
• httpx -- fixed in the PR itself (tox.ini)
• django -- fixed in the PR itself (tox.ini)

The only instrumentation we are not running py313 is pyramid. Will open a track issue for that:

• pyramid - Disabled py313 for now. See Add Python 3.13, remove Python 3.8 and update CI Workflow Pylons/pyramid#3767

Closes open-telemetry/opentelemetry-python#4211
Closes #2724

[codefromthecrypt]

nit with context: I'm trying to figure out where I can contribute without asking, and I feel like I could do what I'm asking here. However, not sure it is my place or not.

Is this also implicitly dropping 3.8? If so, maybe the changelog and PR title could be

"Support Python 3.13 and drop testing of 3.8"

I'm not sure what the "official" word means, I guess we meant we didn't prevent people from using it?

[emdneto]

nit with context: I'm trying to figure out where I can contribute without asking, and I feel like I could do what I'm asking here. However, not sure it is my place or not.

Is this also implicitly dropping 3.8? If so, maybe the changelog and PR title could be

"Support Python 3.13 and drop testing of 3.8"

I'm not sure what the "official" word means, I guess we meant we didn't prevent people from using it?

@codefromthecrypt, thanks for your concern. It's important to note we are not dropping support for python3.8. We do still support 3.8 until 3.13.

"Officially" supporting a Python version is defined here, and it basically means: "Now we are running tests at CI using this python version and we do care about issues of our packages when running with this version. We didn't prevent people from using it before, but now users have some guarantee that packages run fine with that version, and we support it. I hope that it makes sense to you, but let me know if there's something we can improve on the wording here.

[codefromthecrypt]

thanks for the help @emdneto. This in mind, I don't see any changes needed here.