Relax pydantic version (#17)

* Try lower pydantic

* Use carrot notation

* Bump 0.5.4

Author: michael-groundlight

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "groundlight"
-version = "0.5.3"
+version = "0.5.4"
 license = "MIT"
 readme = "UserGuide.md"
 homepage = "https://groundlight.ai"
@@ -17,7 +17,7 @@ python-dateutil = "^2.8.2"
 urllib3 = "^1.26.9"
 frozendict = "^2.3.2"
 certifi = "^2021.10.8"
-pydantic = "^1.9.1"
+pydantic = "^1.7.4"
 
 [tool.poetry.dev-dependencies]
 black = "^22.3.0"