Add more file extensions to check-license-header.sh #107

Job	Run time
Test with Docker / Linux (5.8 - jammy)	26s
Test without Docker / Windows (5.9 - windows-2022)	7m 14s
Test with Docker / Windows (5.9 - windows-2022)	16m 27s
Test with Docker / Linux (5.9 - jammy)	30s
Test without Docker / Windows (6.0 - windows-2022)	7m 7s
Test with Docker / Linux (5.10 - jammy)	29s
Test with Docker / Windows (6.0 - windows-2022)	13m 31s
Test without Docker / Linux (${{ matrix.swift_version }} - ${{ matrix.os_version }})	0s
Test with Docker / Windows (nightly - windows-2019)	8m 56s
Test with Docker / Linux (6.0 - jammy)	32s
Test without Docker / Windows (nightly - windows-2022)	6m 19s
Test with Docker / Windows (nightly-6.1 - windows-2019)	9m 57s
Test with Docker / Linux (nightly-main - jammy)	33s
Test without Docker / Windows (nightly-6.1 - windows-2022)	5m 17s
Test with Docker / Linux (nightly-6.1 - jammy)	33s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	2s
Soundness / Documentation check	40s
Soundness / Format check	0s
Soundness / License headers check	4s
Soundness / Python lint check	5s
Soundness / Shell check	35s
Soundness / Unacceptable language check	4s
Soundness / YAML lint check	2s
	1h 19m 23s

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