add cgo flag back #11

Job	Run time
UI tests	2m 23s
Go tests	14m 29s
Go tests with previous Go version	7m 18s
Build Prometheus for all architectures (0)	6m 44s
golangci-lint	20s
More Go tests	6m 30s
Build Prometheus for all architectures (1)	9m 30s
Build Prometheus for all architectures (2)	6m 40s
Mixins tests	2m 10s
Go tests on Windows	7m 54s
Build Prometheus for all architectures (3)	9m 9s
Build Prometheus for all architectures (4)	6m 44s
Build Prometheus for all architectures (5)	9m 3s
Build Prometheus for common architectures	0s
Build Prometheus for all architectures (6)	9m 33s
Build Prometheus for all architectures (7)	6m 37s
Build Prometheus for all architectures (8)	9m 34s
Build Prometheus for all architectures (9)	6m 47s
Build Prometheus for all architectures (10)	9m 2s
Build Prometheus for all architectures (11)	9m 15s
codeql / Analyze (javascript)	1m 15s
fuzzing / Fuzzing	1m 24s
Publish UI on npm Registry	1m 25s
Publish release artefacts	0s
Publish main branch artifacts	0s
	2h 23m 46s

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