Fix `tempo_cluster` interface tests #721

	name: Discover interfaces

	on:
	pull_request:

	jobs:
	main:
	runs-on: ubuntu-latest
	name: Pretty print, for all interfaces, their schemas and interface tests.
	steps:
	- name: Checkout
	uses: actions/checkout@v3
	with:
	fetch-depth: 1
	- name: Set up python
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	- name: install interface-tester
	run: \|
	python -m pip install pytest-interface-tester ops 'pydantic<2'
	- name: run discover
	run: interface_tester discover

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