fix(examples/arc): Remove obsolete error handling

[vadorovsky]

Label::set_text and Arc::set_end_angle do not return Result.

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Summary by cubic

Removed obsolete error handling in examples/arc by removing the ? operator after Label::set_text and Arc::set_end_angle, which no longer return Result. This fixes build errors and keeps the example in sync with the current API.

^{Written for commit 6f49efc. Summary will update automatically on new commits.}

[cubic-dev-ai]

No issues found across 1 file

[C47D]

Thanks for the fix @vadorovsky I tested it locally and indeed fix an error, any idea why is the Rust build step failing?

thread 'misc::anim::test::anim_test' (12180) panicked at lvgl/src/misc/anim.rs:118:28:
null pointer dereference occurred

[vadorovsky]

any idea why is the Rust build step failing?

thread 'misc::anim::test::anim_test' (12180) panicked at lvgl/src/misc/anim.rs:118:28:
null pointer dereference occurred

It seems like a separate issue and some unsound usage of pointers. I can try fixing it (in a separate PR).