Merge pull request #84 from casework/address_poetry_section_deprecation

Address Poetry section deprecation; regenerate lock file

Author: ajnelson-nist

poetry.lock

@@ -24,7 +24,7 @@ cdo-local-uuid = "^0.5.0"
 python = "^3.9"
 pytz = "^2023.3.post1"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 mypy = "^1"
 pytest = "^7.4.2"
 types-pytz = "^2024"