[projmgr] Global generator `run`: fix sibling contexts selection #1940

Job	Run time
coverage	4m 28s
setup / config	4s
matrix_prep / matrix_prep	2s
unittest (macos-12, darwin, amd64, csolution, publicRepo, true, true)	3m 40s
build-swig (macos-12, darwin, amd64, csolution, publicRepo, true, true)	3m 46s
unittest (macos-12, darwin, arm64, csolution, publicRepo, false, false)	2m 2s
build (macos-12, darwin, amd64, csolution, publicRepo, true, true)	2m 39s
build-swig (macos-12, darwin, arm64, csolution, publicRepo, false, false)	7s
unittest (ubuntu-22.04, linux, amd64, csolution, always, true, true)	3m 15s
build (macos-12, darwin, arm64, csolution, publicRepo, false, false)	2m 33s
build-swig (ubuntu-22.04, linux, amd64, csolution, always, true, true)	2m 56s
unittest (ubuntu-22.04, linux, arm64, csolution, always, false, false)	2m 30s
build-swig (ubuntu-22.04, linux, arm64, csolution, always, false, false)	3s
build (ubuntu-22.04, linux, amd64, csolution, always, true, true)	2m 4s
unittest (windows-2019, windows, amd64, csolution.exe, always, true, false)	8m 45s
build-swig (windows-2019, windows, amd64, csolution.exe, always, true, false)	4m 54s
build (ubuntu-22.04, linux, arm64, csolution, always, false, false)	2m 19s
build-swig (windows-2019, windows, arm64, csolution.exe, always, false, false)	5s
unittest (windows-2019, windows, arm64, csolution.exe, always, false, false)	4m 10s
build (windows-2019, windows, amd64, csolution.exe, always, true, false)	4m 25s
build (windows-2019, windows, arm64, csolution.exe, always, false, false)	4m 24s
Publish Tests Results	5s
release	0s
	59m 16s

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