[TESTING] ci: add testing output to GHA

[mikemimik]

What / Why

Testing npm/benchmarks#4

References

• n/a

[npm-deploy-user]

	angular-quickstart			app-large			app-medium			ember-quickstart			react-app
	prev	current	status	prev	current	status	prev	current	status	prev	current	status	prev	current	status
initial install	38.3s	32.6s	✅	36.7s	34.4s	✅	32.4s	30.5s	✅	26.3s	22.8s	✅	30.6s	32s	✅🐌
repeat install	8.7s	8.3s	✅	8.9s	7.6s	✅	8s	8.3s	✅🐌	6.9s	6.6s	✅	8.4s	7.9s	✅
with warm cache	29.1s	27.4s	✅	31.7s	29.1s	✅	27.2s	27.1s	✅	22.4s	19.3s	✅	26.9s	25.3s	✅
with node_modules	8.6s	8s	✅	7.7s	7.1s	✅	8s	8.3s	✅🐌	6.9s	6.5s	✅	8.3s	7.8s	✅
with lockfile	27.3s	26.2s	✅	31.5s	29.6s	✅	28.9s	27.1s	✅	19.3s	17.4s	✅	24.3s	23.2s	✅
with warm cache and node_modules	9s	8s	✅	8.4s	7.1s	✅	8s	7.5s	✅	7.1s	6.6s	✅	8.4s	7.8s	✅
with warm cache and lockfile	22.8s	21.3s	✅	24.8s	25.3s	✅🐌	23.2s	19.5s	✅	15.5s	15.1s	✅	20.4s	20.7s	✅🐌
with node_modules and lockfile	9.3s	9.1s	✅	8.6s	8.2s	✅	8.6s	8.2s	✅	7.3s	6.7s	✅	9.2s	8.3s	✅