build(deps): allow using ratatui with unicode-width 0.2.1 (#1999)

According to the issue linked from Cargo.toml, the intention has been to
manually upgrade unicode-width every now and then, after verifying that
the new version does not disrupt Ratatui. See
https://github.com/ratatui/ratatui/issues/1271#issuecomment-2373917195.

This PR unblocks using Ratatui in a dependency graph where some other
crate requires some of the fixes that landed in unicode-width 0.2.1.
Without this PR, Cargo blocks Ratatui from being used.

```console
error: failed to select a version for `unicode-width`.
    ... required by package `ratatui v0.29.0`
    ... which satisfies dependency `ratatui = "^0.29"` of package `cargo v0.91.0`
    ... which satisfies path dependency `cargo` (locked to 0.91.0) of package `repro v0.0.0`
versions that meet the requirements `=0.2.0` are: 0.2.0

all possible versions conflict with previously selected packages.

  previously selected package `unicode-width v0.2.1`
    ... which satisfies dependency `unicode-width = "^0.2.1"` of package `cargo v0.91.0`
    ... which satisfies path dependency `cargo` (locked to 0.91.0) of package `repro v0.0.0`

failed to select a version for `unicode-width` which could resolve this conflict
```

BREAKING-CHANGES.md

@@ -26,6 +26,7 @@ This is a quick summary of the sections below:
     feature is enabled
   - Disabling `default-features` suppresses the error message if `show_cursor()` fails when dropping
     `Terminal`
+  - Support a broader range for `unicode-width` version
 - [v0.29.0](#v0290)
   - `Sparkline::data` takes `IntoIterator<Item = SparklineBar>` instead of `&[u64]` and is no longer
     const
@@ -377,6 +378,17 @@ The `termwiz` backend is upgraded from 0.22.0 to 0.23.0.
 This release has a few fixes for hyperlinks and input handling, plus some dependency updates.
 See the [commits](https://github.com/wezterm/wezterm/commits/main/termwiz) for more details.
 
+### Support a broader range for `unicode-width` version ([#1999])
+
+[#1999]: https://github.com/ratatui/ratatui/pull/1999
+
+Ratatui's dependency on `unicode-width`, previously pinned to 0.2.0, has
+expanded to allow version 0.2.1. This comes with 2 behavior changes described in
+[unicode-width#61] and [unicode-width#74].
+
+[unicode-width#61]: https://github.com/unicode-rs/unicode-width/pull/61
+[unicode-width#74]: https://github.com/unicode-rs/unicode-width/pull/74
+
 ## [v0.29.0](https://github.com/ratatui/ratatui/releases/tag/v0.29.0)
 
 ### `Sparkline::data` takes `IntoIterator<Item = SparklineBar>` instead of `&[u64]` and is no longer const ([#1326])

Cargo.lock

@@ -3732,9 +3732,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-width"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fc81956842c57dac11422a97c3b8195a1ff727f06e85c84ed2e8aa277c9a0fd"
+checksum = "4a1a07cc7db3810833284e8d372ccdc6da29741639ecc70c9ec107df0fa6154c"
 
 [[package]]
 name = "untrusted"

Cargo.toml

@@ -71,7 +71,7 @@ trybuild = "1"
 unicode-segmentation = "1"
 unicode-truncate = { version = "2", default-features = false }
 # See <https://github.com/ratatui/ratatui/issues/1271> for information about why we pin unicode-width
-unicode-width = "=0.2.0"
+unicode-width = ">=0.2.0, <=0.2.1"
 
 # Improve benchmark consistency
 [profile.bench]