Update aiofiles requirement from ~=0.4.0 to >=0.4,<0.6 (#725)

Refs #754

Updates the requirements on [aiofiles](https://github.com/Tinche/aiofiles) to permit the latest version.
- [Release notes](https://github.com/Tinche/aiofiles/releases)
- [Commits](https://github.com/Tinche/aiofiles/compare/v0.4.0...v0.5.0)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

setup.py

@@ -43,7 +43,7 @@ setup(
         "pint~=0.9",
         "pluggy~=0.13.0",
         "uvicorn~=0.11",
-        "aiofiles~=0.4.0",
+        "aiofiles>=0.4,<0.6",
         "janus~=0.4.0",
         "PyYAML~=5.3",
         "mergedeep~=1.1.1",