feat: Add new OAS versions.

Author: mike-oakley

openapi_pydantic/v3/v3_0_3/open_api.py

@@ -16,7 +16,7 @@
 class OpenAPI(BaseModel):
     """This is the root document object of the OpenAPI document."""
 
-    openapi: Literal["3.0.3", "3.0.2", "3.0.1", "3.0.0"] = "3.0.3"
+    openapi: Literal["3.0.4", "3.0.3", "3.0.2", "3.0.1", "3.0.0"] = "3.0.4"
     """
     **REQUIRED**. This string MUST be the [semantic version number](https://semver.org/spec/v2.0.0.html)
     of the [OpenAPI Specification version](#versions) that the OpenAPI document uses. 

openapi_pydantic/v3/v3_1_0/open_api.py

@@ -18,7 +18,7 @@
 class OpenAPI(BaseModel):
     """This is the root document object of the OpenAPI document."""
 
-    openapi: Literal["3.1.0"] = "3.1.0"
+    openapi: Literal["3.1.1", "3.1.0"] = "3.1.1"
     """
     **REQUIRED**. This string MUST be the [version number](#versions)
     of the OpenAPI Specification that the OpenAPI document uses.