Fix ParallelExecutor crash when Parallel called from within module forward()#9104

LukeDevs wants to merge 1 commit intostanfordnlp:mainstanfordnlp/dspy:mainfrom

LukeDevs:BUG-FIX/parallelizer-contextvar-and-error-loggingLukeDevs/dspy:BUG-FIX/parallelizer-contextvar-and-error-loggingCopy head branch name to clipboard