Merge torrust/torrust-tracker#1406: Refactor containers #2817

Job	Run time
Build on ubuntu-latest (nightly)	3m 40s
Formatting	22s
Build on macos-latest (stable)	3m 34s
Build on windows-latest (stable)	7m 24s
Build on macos-latest (nightly)	3m 37s
Build on windows-latest (nightly)	7m 12s
Build on ubuntu-latest (stable)	3m 51s
Static Analysis (stable)	2m 5s
Static Analysis (nightly)	2m 3s
Units (nightly)	13m 52s
Units (stable)	13m 19s
E2E (nightly)	20m 53s
E2E (stable)	21m 34s
	1h 43m 26s

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