Bump julia-actions/setup-julia from 1 to 2 (#167) #551

Job	Run time
Check format	1m 3s
Documentation	18m 50s
Julia 1.4 / generate=false / ubuntu-latest / x64 / push	7m 20s
Julia 1.4 / generate=false / windows-latest / x64 / push	12m 29s
Julia 1 / generate=false / ubuntu-latest / x64 / push	2m 4s
Julia 1 / generate=false / windows-latest / x64 / push	3m 22s
Julia nightly / generate=false / ubuntu-latest / x64 / push	3m 2s
Julia nightly / generate=false / windows-latest / x64 / push	4m 29s
Julia 1.4 / generate=true / ubuntu-latest / x64 / push	8m 37s
Julia 1.4 / generate=true / windows-latest / x64 / push	20m 36s
Julia 1 / generate=true / ubuntu-latest / x64 / push	2m 49s
Julia 1 / generate=true / windows-latest / x64 / push	3m 57s
Julia nightly / generate=true / ubuntu-latest / x64 / push	4m 9s
Julia nightly / generate=true / windows-latest / x64 / push	4m 49s
finalize	1s
	1h 37m 37s

Provide feedback