Updates the requirements on [poethepoet](https://github.com/nat-n/poethepoet) to permit the latest version.
- [Release notes](https://github.com/nat-n/poethepoet/releases)
- [Commits](nat-n/poethepoet@v0.1.0...v0.23.0)

---
updated-dependencies:
- dependency-name: poethepoet
  dependency-type: direct:development
...

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

Updates the requirements on [poethepoet](https://github.com/nat-n/poethepoet) to permit the latest version.
- [Release notes](https://github.com/nat-n/poethepoet/releases)
- [Commits](nat-n/poethepoet@v0.1.0...v0.24.0)

---
updated-dependencies:
- dependency-name: poethepoet
  dependency-type: direct:development
...

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

`responder 2.x` apparently pulls `httptools-0.1.2`, which is pretty old,
and lacks binary wheels on PyPI.

Bumps [typesystem](https://github.com/encode/typesystem) from 0.2.5 to 0.4.1.
- [Release notes](https://github.com/encode/typesystem/releases)
- [Commits](encode/typesystem@0.2.5...0.4.1)

---
updated-dependencies:
- dependency-name: typesystem
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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Bumps [actions/setup-python](https://github.com/actions/setup-python) from 4 to 5.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@1.0.0b3...8.0.0)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:development
...

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

Updates the requirements on [twine](https://github.com/pypa/twine) to permit the latest version.
- [Release notes](https://github.com/pypa/twine/releases)
- [Changelog](https://github.com/pypa/twine/blob/main/docs/changelog.rst)
- [Commits](pypa/twine@1.3.0...5.0.0)

---
updated-dependencies:
- dependency-name: twine
  dependency-type: direct:development
...

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

Updates the requirements on [pytest-cov](https://github.com/pytest-dev/pytest-cov) to permit the latest version.
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v1.0...v5.0.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-type: direct:development
...

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

Updates the requirements on [poethepoet](https://github.com/nat-n/poethepoet) to permit the latest version.
- [Release notes](https://github.com/nat-n/poethepoet/releases)
- [Commits](nat-n/poethepoet@v0.1.0...v0.25.0)

---
updated-dependencies:
- dependency-name: poethepoet
  dependency-type: direct:development
...

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

Also, add `httpx` for testing.