Do not require a license header on `.gitattribute` files #116

Job	Run time
Test without Docker / Linux (${{ matrix.swift_version }} - ${{ matrix.os_version }})	0s
Test with Docker / Linux (5.8 - jammy)	27s
Test without Docker / Windows (5.9 - windows-2022)	6m 18s
Test with Docker / Windows (5.9 - windows-2022)	19m 41s
Test with Docker / Linux (5.9 - jammy)	34s
Test without Docker / Windows (6.0 - windows-2022)	6m 15s
Test with Docker / Linux (5.10 - jammy)	31s
Test with Docker / Windows (6.0 - windows-2022)	14m 11s
Test without Docker / Windows (nightly - windows-2022)	3m 50s
Test with Docker / Linux (6.0 - jammy)	32s
Test with Docker / Windows (nightly - windows-2019)	9m 40s
Test with Docker / Linux (nightly-main - jammy)	40s
Test with Docker / Windows (nightly-6.1 - windows-2019)	8m 57s
Test without Docker / Windows (nightly-6.1 - windows-2022)	2m 59s
Test with Docker / Linux (nightly-6.1 - jammy)	33s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	2s
Soundness / Format check	0s
Soundness / Documentation check	37s
Soundness / License headers check	3s
Soundness / Shell check	36s
Soundness / Unacceptable language check	3s
Soundness / YAML lint check	3s
Soundness / Python lint check	4s
	1h 16m 36s

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