Add a github workflow for Linux based on the swiftlang template #7

Job	Run time
Test / Linux (6.0 - jammy)	4m 59s
Test / Linux (6.0 - focal)	5m 14s
Test / Windows (${{ matrix.swift_version }} - ${{ ((contains(matrix.swift_version, 'nightly') && 'windows-2019') \|\| 'windows-2022') }})	0s
Test / Linux (6.0 - amazonlinux2)	31s
Test / Linux (6.0 - rhel-ubi9)	17m 32s
Soundness / API breakage check	0s
Soundness / Documentation check	0s
Soundness / Unacceptable language check	2s
Soundness / Broken symlinks check	3s
Soundness / Format check	0s
Soundness / License headers check	0s
Soundness / YAML lint check	9s
Soundness / Python lint check	6s
Soundness / Shell check	0s
	28m 36s

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