Add ability to include swift versions #143

Job	Run time
Test with Docker / Linux (5.9 - jammy)	29s
Test with Docker / Linux (5.10 - jammy)	27s
Test with Docker / Windows (5.9 - windows-2022)	16m 1s
Test without Docker / Linux (${{ matrix.swift_version }} - ${{ matrix.os_version }})	0s
Test with Docker / Linux (6.0 - jammy)	34s
Test with Docker / Windows (6.0 - windows-2022)	9m 7s
Test with Docker / Linux (6.1 - jammy)	37s
Test with Docker / Windows (6.1 - windows-2022)	14m 50s
Test with Docker / Linux (nightly-main - jammy)	36s
Test with Docker / Windows (nightly - windows-2019)	8m 29s
Test with Docker / Linux (nightly-6.1 - jammy)	31s
Test with Docker / Windows (nightly-6.1 - windows-2019)	9m 7s
Test without Docker / Windows (5.9 - windows-2022)	4m 58s
Test without Docker / Windows (6.0 - windows-2022)	5m 33s
Test without Docker / Windows (6.1 - windows-2022)	4m 25s
Soundness / API breakage check	0s
Soundness / Documentation check	31s
Soundness / Unacceptable language check	3s
Soundness / License headers check	5s
Soundness / Broken symlinks check	3s
Soundness / Format check	0s
Soundness / Shell check	32s
Soundness / YAML lint check	3s
Soundness / Python lint check	4s
Test without Docker / Windows (nightly - windows-2022)	4m 35s
Test without Docker / Windows (nightly-6.1 - windows-2022)	5m 33s
	1h 27m 13s

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