Fix bug in GlueJobOperator where consecutive runs fail when a local script file is used

[moritzsanne]

closes: #38959

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[eladkal]

can you add unit test to cover this change?

[moritzsanne]

Hey, thanks for reviewing this so quickly. I've rebased my branch using the rebase button in github after your reviews. I am unsure if this was the right thing to do in this case. I hope this doesn't cause any confusion in the commit history. Let me know if you need anything else from me to get this merged.

Enjoy your weekend!

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