Bump actions/checkout from 5 to 6 - #10

Warning: Code scanning cannot determine the alerts introduced by this pull request, because 4 configurations present on refs/heads/main were not found:

Default setup

• ❓  /language:actions
• ❓  /language:c-cpp
• ❓  /language:javascript-typescript
• ❓  /language:rust

View all branch alerts.