runnerv2client: add client and "beta run --server" #2026

Job	Run time
Build and test with Go 1.22 on ubuntu-latest	4m 12s
Build and test with Go 1.22 on ubuntu-latest	1m 9s
Build and test with Go 1.22 on ubuntu-latest	1m 11s
Test parser against vast amount of Markdowns	35s
Test parser against vast amount of Markdowns	33s
Test parser against vast amount of Markdowns	36s
Test in Docker	2m 8s
Test in Docker	2m 4s
Test in Docker	2m 1s
Build and test with Go 1.22 on windows-latest	4m 22s
Build and test with Go 1.22 on windows-latest	5m 48s
Build and test with Go 1.22 on windows-latest	4m 59s
Lint with Go 1.22	1m 44s
Lint with Go 1.22	2m 18s
Lint with Go 1.22	1m 37s
SonarCloud Analysis	0s
SonarCloud Analysis	0s
SonarCloud Analysis	0s
	35m 17s

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