julia

522f4969 - only import REPL in runtests if we are actually going to use it (#56635)

only import REPL in runtests if we are actually going to use it (#56635) External stdlibs that want to use this might not want to have to load REPL etc. REPL is used in https://github.com/JuliaLang/julia/blob/4709b6c48e79f6226e6dbee1b49bf7e563058ff7/test/runtests.jl#L215.