feat: thread autoscaling #2058

Job	Run time
prepare	24s
build (php-8-2-27-alpine, linux/amd64)	4m 9s
build (php-8-2-27-alpine, linux/386)	2m 53s
build (php-8-2-27-alpine, linux/arm/v7)	6m 56s
build (php-8-2-27-alpine, linux/arm64)	3m 9s
build (php-8-2-27-bookworm, linux/amd64)	4m 9s
build (php-8-2-27-bookworm, linux/386)	7m 8s
build (php-8-2-27-bookworm, linux/arm/v7)	3m 10s
build (php-8-2-27-bookworm, linux/arm64)	2m 43s
build (php-8-3-16-alpine, linux/amd64)	3m 48s
build (php-8-3-16-alpine, linux/386)	7m 8s
build (php-8-3-16-alpine, linux/arm/v7)	3m 10s
build (php-8-3-16-alpine, linux/arm64)	3m 7s
build (php-8-3-16-bookworm, linux/amd64)	3m 42s
build (php-8-3-16-bookworm, linux/386)	3m 20s
build (php-8-3-16-bookworm, linux/arm/v7)	3m 2s
build (php-8-3-16-bookworm, linux/arm64)	2m 52s
build (php-8-4-3-alpine, linux/amd64)	4m 9s
build (php-8-4-3-alpine, linux/386)	3m 6s
build (php-8-4-3-alpine, linux/arm/v7)	7m 8s
build (php-8-4-3-alpine, linux/arm64)	10m 12s
build (php-8-4-3-bookworm, linux/amd64)	4m 4s
build (php-8-4-3-bookworm, linux/386)	2m 59s
build (php-8-4-3-bookworm, linux/arm/v7)	3m 9s
build (php-8-4-3-bookworm, linux/arm64)	2m 54s
push	0s
	1h 42m 31s

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