Add JSON client for feed and tags #433

Job	Run time
integration-test (macos-latest, 3.9)	36s
unit-test (macos-latest, 3.9)	1m 34s
integration-test (macos-latest, 3.10)	38s
unit-test (macos-latest, 3.10)	1m 28s
integration-test (macos-latest, 3.11)	18s
unit-test (macos-latest, 3.11)	1m 2s
integration-test (macos-latest, 3.12)	15s
unit-test (macos-latest, 3.12)	2m 8s
integration-test (ubuntu-22.04, 3.9)	19s
unit-test (ubuntu-22.04, 3.9)	1m 33s
integration-test (ubuntu-22.04, 3.10)	17s
unit-test (ubuntu-22.04, 3.10)	1m 34s
integration-test (ubuntu-22.04, 3.11)	20s
unit-test (ubuntu-22.04, 3.11)	1m 18s
integration-test (ubuntu-22.04, 3.12)	25s
unit-test (ubuntu-22.04, 3.12)	2m 50s
integration-test (windows-latest, 3.9)	58s
unit-test (windows-latest, 3.9)	2m 2s
integration-test (windows-latest, 3.10)	47s
unit-test (windows-latest, 3.10)	2m 13s
integration-test (windows-latest, 3.11)	1m 3s
unit-test (windows-latest, 3.11)	2m 12s
integration-test (windows-latest, 3.12)	57s
unit-test (windows-latest, 3.12)	3m 47s
	30m 34s

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