move writing to REPL history file to behind a PID lock (#45450)
Should fix https://github.com/JuliaLang/julia/issues/37015
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Co-authored-by: KristofferC <kristoffer.carlsson@juliacomputing.com>
Co-authored-by: Ian Butterworth <i.r.butterworth@gmail.com>
Co-authored-by: Matt Bauman <mbauman@juliahub.com>
