Testing Playground Refactor #918

Job	Run time
test-colab-notebook	1m 14s
run-pytest	2m 31s
install-ersilia (3.8)	26s
test-docker (3.8)	1m 10s
install-ersilia (3.9)	23s
test-os (ubuntu-22.04)	56s
test-docker (3.9)	57s
install-ersilia (3.10)	26s
test-docker (3.10)	1m 1s
install-ersilia (3.11)	23s
test-os (macos-latest)	1m 5s
test-docker (3.11)	58s
install-ersilia (3.12)	24s
test-docker (3.12)	1m 3s
update-model-request_template	3s
run-cli-test-multiple	7m 55s
run-cli-test-single	5m 32s
	26m 27s

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