fix: close connection when handling errors (warning on Python 3.14)

fix: update tests, example.org is now behind cloudflare

chore: test against newer python versions

feat: bump the version number for when uploads are merged

feat: upload files with the same API as requests

fix: the httpbingo 404 endpoint now returns JSON

feat: add example test where thttp.request is mocked

Fix typo in README

Update dual license option with MIT

ci: update ci pipeline

ci: move coverage include into pyproject.yml

ci: update coverage check with --fail-under

chore: use black compatibility mode for isort

chore: change black line length

fix: imports