Avoid duplication of path parameter definitions for a given path item object

[tnmtechnologies]

The OpenAPI spec allows to define path parameter definitions to the path item object level (see https://github.com/OAI/OpenAPI-Specification/blob/3.1.0/versions/3.1.0.md#pathItemObject).

This practise allows to avoid the duplication of the parameter definition for all the related operations.
It is applied in few yaml files but not globally.