build(deps-dev): bump curio from 1.5 to 1.6 (#1511)

Bumps [curio](https://github.com/dabeaz/curio) from 1.5 to 1.6.
- [Release notes](https://github.com/dabeaz/curio/releases)
- [Changelog](https://github.com/dabeaz/curio/blob/master/CHANGES)
- [Commits](dabeaz/curio@1.5...1.6)

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

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

Author: dependabot[bot]

poetry.lock

@@ -67,7 +67,7 @@ typing-extensions = ">=4.0,<5.0"
 
 [tool.poetry.dev-dependencies]
 anyio = "^3.6"
-curio = "^1.5"
+curio = "^1.6"
 trio = "^0.22"
 attrs = "^22.1"
 httpx = "^0.23"