fix sample limit variable #10

Job	Run time
Build Prometheus for all architectures	0s
fuzzing	0s
Build Prometheus for common architectures (0)	0s
golangci-lint	0s
Build Prometheus for common architectures (1)	0s
Go tests	24m 24s
Build Prometheus for common architectures (2)	0s
Go tests with previous Go version	6m 48s
Mixins tests	2m 16s
UI tests	9m 22s
Go tests on Windows	9m 6s
codeql / Analyze (go)	20m 1s
codeql / Analyze (javascript)	1m 58s
Publish UI on npm Registry	1m 11s
Build Prometheus for common architectures (0)	17m 33s
Build Prometheus for common architectures (1)	34m 55s
golangci-lint	45s
Publish main branch artifacts	0s
Publish release artefacts	0s
Build Prometheus for common architectures (2)	0s
Build Prometheus for common architectures (2)	1s
	2h 8m 20s

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