⬆️ Bump environs from 4.1.0 to 6.0.0

Bumps [environs](https://github.com/sloria/environs) from 4.1.0 to 6.0.0.
- [Release notes](https://github.com/sloria/environs/releases)
- [Changelog](https://github.com/sloria/environs/blob/master/CHANGELOG.md)
- [Commits](sloria/environs@4.1.0...6.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

setup.py

@@ -13,7 +13,7 @@
         "zenroom==0.2.5",
         "uvicorn==0.4.6",
         "inflect==2.1.0",
-        "environs==4.1.0",
+        "environs==6.0.0",
         "requests==2.21.0",
         "SQLAlchemy==1.3.1",
         "pre-commit==1.14.4",