Recent Commits to requests

Merge pull request #6999 from psf/dependabot/github_actions/step-security/harden-runner-2.13.0

Bump step-security/harden-runner from 2.12.0 to 2.13.0

Bump step-security/harden-runner from 2.12.0 to 2.13.0

Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.12.0 to 2.13.0.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](https://github.com/step-security/harden-runner/compare/0634a2670c59f64b4a01f0f96f84700a4088b9f0...ec9f2d5744a09debf3a187a3f4f675c53b671911)

---
updated-dependencies:
- dependency-name: step-security/harden-runner
  dependency-version: 2.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Add support for Python 3.14 and drop support for Python 3.8 (#6993)

* Add testing for Python 3.14 preview build

* Add trove classifier for Python 3.14

* Remove support for Python 3.8

Update Makefile rules (#6996)

docs: clarify timeout parameter uses seconds in Session.request (#6994)