Rollup of 4 pull requests

[matthiaskrgr]

Successful merges:

• Add Result::{ok, err, and, or, unwrap_or} as const #92385 (Add Result::{ok, err, and, or, unwrap_or} as const)
• Remove argument from closure in thread::Scope::spawn. #94559 (Remove argument from closure in thread::Scope::spawn.)
• promot debug_assert to assert #94712 (promot debug_assert to assert)
• update Miri #94716 (update Miri)

Failed merges:

r? @ghost
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