Limit openapi-pydantic up to 0.6 version

pyproject.toml

@@ -40,7 +40,7 @@ injector = ">=0.15.0, <1"
 SQLAlchemy = ">=1.3, <2"
 typing-extensions = "^4.8"
 StrEnum = "^0.4.8"
-openapi-pydantic = ">=0.5.0, <1"
+openapi-pydantic = ">=0.5.0, <0.6"
 pydantic = ">=1.10, <2"
 openapi-spec-validator = ">=0.5.7, <1"
 uritemplate = ">=4.1.1, <5"