add runtests.jl #2

Job	Run time
build	7m 50s
Julia 1.6 - ubuntu-latest - x64	9m 14s
Julia 1.6 - macOS-latest - x64	9m 3s
Julia 1.6 - windows-latest - x64	20m 30s
Julia 1.10 - ubuntu-latest - x64	5m 41s
Julia 1.10 - macOS-latest - x64	7m 55s
Julia 1.10 - windows-latest - x64	8m 1s
Julia 1 - ubuntu-latest - x64	9m 42s
Julia 1 - macOS-latest - x64	14m 37s
Julia 1 - windows-latest - x64	11m 36s
Julia nightly - ubuntu-latest - x64	10m 4s
Julia nightly - macOS-latest - x64	14m 25s
Julia nightly - windows-latest - x64	12m 59s
	2h 21m 37s

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