feat: Support urllib3 <= 2.1 for py 3.11

[astuyve]

What does this PR do?

Followup to #329
Fixes #376

Motivation

Right now boto3 is at 1.26.90 for 3.7, 3.8, 3.9, and 3.10. This causes a known issue when users supply version >= 2.0 of urllib3.

Previously we pinned urllib3 to all versions of this library, but we'll open this up for Python 3.11.

Also, this marks urllib3 as optional as this library doesn't directly depend on it.

Testing Guidelines

I tested importing boto3 using urllib3==2.0.7 on python 3.10, it fails to import.
I tested the same function code w/ urllib3==2.0.7 on python 3.11 and the code runes fine.

This pin and the automated tests all pass, so we should be confident this change will open up py3.11 users to urllib3 2.0 without impacting other users using incompatible runtimes (3.7, 3.8, 3.9, and 3.10)

Additional Notes

Types of Changes

• Bug fix
• New feature
• Breaking change
• Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• This PR's description is comprehensive
• This PR contains breaking changes that are documented in the description
• This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• This PR impacts documentation, and it has been updated (or a ticket has been logged)
• This PR's changes are covered by the automated tests
• This PR collects user input/sensitive content into Datadog
• This PR passes the integration tests (ask a Datadog member to run the tests)

[LewisCowlesMotive]

👍 ship it 🙏 🚀

[duncanista]

Thanks for fixing this!

LGTM – just one question.

Could you be more specific on

I tested this on 3.11 and see it functions correctly, but importing boto3 in 3.10 and under fails.

I'm not sure I understand it correctly.

[astuyve]

Sorry, I'll clarify and update:
I tested importing boto3 using urllib3==2.0.7 on python 3.10, it fails to import.
I tested the same function code w/ urllib3==2.0.7 on python 3.11 and the code runes fine.

[LewisCowlesMotive]

To confirm (for me please),

boto3 = { version = "^1.28.0", optional = true }

The only material difference from my PR, makes this work with Python 3.10, or it is still broken if it selects boto3?

Update, ignore, I see 3.11 now

[astuyve]

Yup, just 3.11

[LewisCowlesMotive]

Works for me, it's the only one I'm using 😄