pip: update edk2-pytool-extensions requirement from ~=0.17.2 to ~=0.19.1

[dependabot[bot]]

Updates the requirements on edk2-pytool-extensions to permit the latest version.

Release notes

Sourced from edk2-pytool-extensions's releases.

v0.19.1

What's Changed

• setup.py: Add semantic_version as an installation requirement by @​makubacki in tianocore/edk2-pytool-extensions#322

Full Changelog: https://github.com/tianocore/edk2-pytool-extensions/compare/v0.19.0...v0.19.1

Commits

• ca7d9e2 setup.py: Add semantic_version as an installation requirement (#322)
• e5a2ecd Replace issue templates with form templates
• 9af1838 Allow NuGet version divergence from Semantic Versioning
• 6cc1d7a .vscode/settings.json: Add workspace settings for unit tests
• 1f8b648 bad variable name caused a trace in an error branch
• f8e66d2 Improve NuGet dependency semantic version handling
• c5b918f Fix: Incorrect variable name in trace statement of Omnicache (#315)
• b5dd77a Require python 3.10.x (#314)
• See full diff 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)