chore(deps): bump annotate-snippets to 0.11.5

[shulaoda]

Summary

Cargo.lock-only bump of annotate-snippets from 0.11.4 to 0.11.5. The Cargo.toml requirement stays at "0.11" (semver-compatible), so no API adaptation and no breaking change. Prerequisite for #6902 to cover the full reproducer in #6850.

Why this is needed

The reproducer in #6850 (a 120-snowman string literal triggering LineOverflow with error_on_unformatted) trips two independent col-vs-byte bugs. The rustfmt-side one is fixed in #6902; the second hides in annotate-snippets 0.11.4 itself, in its long-line truncation path at src/renderer/display_list.rs:351–373:

let mut taken = 0;
let code: String = text.chars().skip(left).take_while(|ch| {
    let next = unicode_width::UnicodeWidthChar::width(*ch).unwrap_or(1);
    if taken + next > right - left { return false; }
    taken += next;          // taken is visual width
    true
}).collect();
if self.margin.was_cut_right(line_len) {
    code[..taken.saturating_sub(3)].fmt(f)?;  // ← taken used as byte index
    "...".fmt(f)?;
}

Same class of bug as the one #6902 fixes on the rustfmt side: taken accumulates unicode_width (visual columns) but code[..taken.saturating_sub(3)] is a byte slice on a UTF-8 String. On multibyte content the boundary falls inside a codepoint and panics with end byte index N is not a char boundary at display_list.rs:369.

Before #6902, the rustfmt-side bug fired first and masked this one. Once #6902 starts feeding annotate-snippets correct byte ranges, the issue's full reproducer hits this upstream panic instead.

annotate-snippets fixed this in 0.11.5 (release notes: Fix unicode handling in margin-based rendering). Because Cargo.toml already declares annotate-snippets = "0.11", the bump is just a cargo update -p annotate-snippets — Cargo.lock change only.

[ytmimi]

Are there any notable changes from 0.11.4 -> 0.11.5 that would impact formatting?

[shulaoda]

Are there any notable changes from 0.11.4 -> 0.11.5 that would impact formatting?

I tested it locally and didn’t notice any notable formatting changes. Realistically, I wouldn’t expect this update to introduce any diffs apart from diagnostics-related changes.

[ytmimi]

I think it would be helpful if you added similar context to this PR description about the 0.11.4 annotate_snippet bug that you mentioned in #6902

[ytmimi]

Just to be safe I'm running the Diff-Check

[shulaoda]

I think it would be helpful if you added similar context to this PR description about the 0.11.4 annotate_snippet bug that you mentioned in #6902

done!