chore: bump python-lsp-server[all] from 1.2.0 to 1.2.1 (#47)

Bumps [python-lsp-server[all]](https://github.com/python-lsp/python-lsp-server) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/python-lsp/python-lsp-server/releases)
- [Changelog](https://github.com/python-lsp/python-lsp-server/blob/develop/CHANGELOG.md)
- [Commits](python-lsp/python-lsp-server@v1.2.0...v1.2.1)

---
updated-dependencies:
- dependency-name: python-lsp-server[all]
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,4 +1,4 @@
-python-lsp-server[all]==1.2.0
+python-lsp-server[all]==1.2.1
 python-lsp-black==1.0.0
 pyls-isort==0.2.2
 pylsp-mypy==0.5.1