build(deps): Update virtualenv requirement from ~=20.17.1 to ~=20.19.0

[dependabot]

Updates the requirements on virtualenv to permit the latest version.

Changelog

Sourced from virtualenv's changelog.

v20.19.0 (2023-02-07)

Features - 20.19.0

- Allow platformdirs version ``3`` - by :user:`cdce8p`. (:issue:`2499`)
v20.18.0 (2023-02-06)
Features - 20.18.0

• Drop 3.6 runtime support (can still create 2.7+) - by :user:gaborbernat. (:issue:2489)

Bugfixes - 20.18.0

- Fix broken prompt in Nushell when activating virtual environment - by :user:`kubouc`. (:issue:`2481`)
- Bump embedded pip to ``23.0`` and setuptools to ``67.1`` - by :user:`gaborbernat`. (:issue:`2489`)
v20.17.1 (2022-12-05)
Bugfixes - 20.17.1

• A py or python spec means any Python rather than CPython - by :user:gaborbernat. ([#2460](https://github.com/pypa/virtualenv/issues/2460) <https://github.com/pypa/virtualenv/issues/2460>_)
• Make activate.nu respect VIRTUAL_ENV_DISABLE_PROMPT and not set the prompt if reqeusted - by :user:m-lima. ([#2461](https://github.com/pypa/virtualenv/issues/2461) <https://github.com/pypa/virtualenv/issues/2461>_)

v20.17.0 (2022-11-27)

Features - 20.17.0

- Change Nushell activation script to be a module meant to be activated as an overlay. (`[#2422](https://github.com/pypa/virtualenv/issues/2422) <https://github.com/pypa/virtualenv/issues/2422>`_)
- Update operator used in Nushell activation script to be compatible with future versions. (`[#2450](https://github.com/pypa/virtualenv/issues/2450) <https://github.com/pypa/virtualenv/issues/2450>`_)
Bugfixes - 20.17.0

• Do not use deprecated API from importlib.resources on Python 3.10 or later - by :user:gaborbernat. ([#2448](https://github.com/pypa/virtualenv/issues/2448) <https://github.com/pypa/virtualenv/issues/2448>_)
• Upgrade embedded setuptools to 65.6.3 from 65.5.1 - by :user:gaborbernat. ([#2451](https://github.com/pypa/virtualenv/issues/2451) <https://github.com/pypa/virtualenv/issues/2451>_)

v20.16.7 (2022-11-12)

Bugfixes - 20.16.7

- Use parent directory of python executable for pyvenv.cfg "home" value per PEP 405 - by :user:`vfazio`. (`[#2440](https://github.com/pypa/virtualenv/issues/2440) <https://github.com/pypa/virtualenv/issues/2440>`_)
</tr></table> 

... (truncated)

Commits

• e2833af release 20.19.0
• e08778b Bump platformdirs dependency to <4 (#2502)
• da9f201 Fix HTML title docs (#2500)
• 2a56eb2 Merge pull request #2497 from pypa/release-20.18.0
• 32f270c release 20.18.0
• 828762a Use furo docs theme (#2496)
• c68affb Add changelog
• 9b4b17f Bump embedded pip and setuptools (#2489)
• a98c3f5 Improve activator documentation (#2488)
• ab35ce4 Don't run scheduled workflow jobs on forks (#2490)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.