chore: fix broken conftests circle ci

[taegyunkim]

#10373 modified docker/Dockerfile but didn't trigger conftests circle ci test and merged. After the merge on main, conftests started to fail on main.

1. Fix it by specifying the python version on hatch.toml. This actually looks like a bug on hatch and for now setting the version to be 3.10 as circle ci docker image we use for conftests is based on python 3.10, and hatch seems to pick up the version when it's available. If not set, hatch installs 3.12 and results in this weird error, failing to install ddtrace as it can't find clang compiler.
2. Also updates suitespec generator
   gen_circleci_config.py calls fnmatch.filter(changed_files, pattern) to get the list of files matching pattern and look below.

❯ python
Python 3.12.5 (main, Aug 20 2024, 16:07:54) [GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import fnmatch
>>> fnmatch.filter(["docker/Dockerfile"], "docker")
[]
>>> fnmatch.filter(["docker/Dockerfile"], "docker*")
['docker/Dockerfile']

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

hatch.toml                                                              @DataDog/python-guild
scripts/gen_circleci_config.py                                          @DataDog/apm-core-python

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: taegyunkim/conftests
Commit report: 3058d17
Test service: dd-trace-py

✅ 0 Failed, 118996 Passed, 23772 Skipped, 3h 28m 15.37s Total duration (1m 43.35s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-08-27 02:30:59

Comparing candidate commit 3058d17 in PR branch taegyunkim/conftests with baseline commit ecc5741 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 353 metrics, 47 unstable metrics.