rest_client: single item endpoints not detected when path has extension

[rudolfix]

dlt version

0.4.11

Describe the problem

Single item endpoint detector does support paths like /item/{id} but does not support /item/{id}.json (extension after path param)

Expected behavior

paths with extension are correctly detected

Steps to reproduce

Generate a pipeline for https://gist.githubusercontent.com/wing328/44a6cb6c899feda4c2bd44747e9dcbc8/raw/737d3cf34daeef32280c66c5790c7de1a7b26905/hacker_news_api_swagger.json and try to run it

Operating system

Linux, macOS, Windows

Runtime environment

Local

Python version

3.8

dlt data source

No response

dlt destination

No response

Other deployment details

No response

Additional information

No response