ci: Github actions > use ubuntu arm runner #1886

Job	Run time
php-cs	34s
unit (8.1, lowest)	19s
examples (8.3, macos-13)	2m 24s
unit (8.1, locked)	17s
examples (8.3, macos-14)	1m 42s
unit (8.2, lowest)	26s
examples (8.3, windows-latest)	2m 8s
unit (8.2, locked)	20s
examples (ubuntu-latest)	47s
unit (8.3, lowest)	24s
examples (ubuntu-24.04-arm)	55s
examples (ubuntu-latest, alpine)	22s
unit (8.3, locked)	24s
examples (ubuntu-24.04-arm, alpine)	6s
unit (8.4, lowest)	29s
unit (8.4, locked)	25s
finish	4s
	12m 6s

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