Fix rustup command in the LibAFL book#2491

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domenukk merged 2 commits intoAFLplusplus:mainfrom

marcograss:main

Aug 21, 2024

Commits on Aug 16, 2024

the rustup official command to update is 'rustup update' not 'rustup upgrade', although to catch mistakes, 'rustup upgrade' also fallback to update
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Commits on Aug 21, 2024

Merge branch 'main' of https://github.com/AFLplusplus/LibAFL
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