Make code compatible with setuptools v82++

[jscheffl]

Setuptools v82.0.0 deprecated removed pkg_resources - see https://setuptools.pypa.io/en/stable/history.html#v82-0-0

This fixes broken canary and all PRs failing on https://github.com/apache/airflow/actions/runs/21800753818

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• Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
• For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
• When adding dependency, check compliance with the ASF 3rd Party License Policy.
• For significant user-facing changes create newsfragment: {pr_number}.significant.rst or {issue_number}.significant.rst, in airflow-core/newsfragments.

[potiuk]

nice