Merge pull request #546 from TimWolla/improve-docker-instructions #79

Job	Run time
build-assets / build-phar (ubuntu-latest, 8.1)	30s
build-assets / build-executable (macos-15-intel)	8m 30s
build-assets / build-executable (ubuntu-24.04)	5m 22s
build-assets / build-executable (ubuntu-24.04-arm)	4m 1s
build-assets / build-executable (macos-26)	4m 56s
build-and-push-docker-image / Docker binary-only image	33s
	23m 52s

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