prometheus-node-exporter-ucode: add a plugin for go2rtc metrics #26908

Job	Run time
Test Formalities / Test Formalities	20s
Feeds Package Test Build / Test arm_cortex-a15_neon-vfpv4	35m 33s
Feeds Package Test Build / Test aarch64_generic	38m 7s
Feeds Package Test Build / Test mipsel_24kc	31m 29s
Feeds Package Test Build / Test arm_cortex-a9_vfpv3-d16	33m 4s
Feeds Package Test Build / Test x86_64	39m 34s
Feeds Package Test Build / Test i386_pentium-mmx	32m 11s
Feeds Package Test Build / Test riscv64_generic	32m 11s
Feeds Package Test Build / Test powerpc_8548	30m 54s
Feeds Package Test Build / Test powerpc_464fp	29m 10s
Feeds Package Test Build / Test mips_24kc	31m 11s
	5h 33m 44s

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