Fix unnecessary line breaks for expressions with comments under preview (#4026, #3713) - #5455

This PR contains the following updates:

| Package | Change | [Age](https://docs.renovatebot.com/merge-confidence/) | [Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [black](https://github.com/psf/black) ([changelog](https://github.com/psf/black/blob/main/CHANGES.md)) | `<26.10.1,>=26.10.0` → `<26.10.2,>=26.10.1` | ![age](https://developer.mend.io/api/mc/badges/age/pypi/black/26.10.1?slim=true) | ![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/black/26.10.0/26.10.1?slim=true) |

---

### Release Notes

<details>
<summary>psf/black (black)</summary>

### [`v26.10.1`](https://github.com/psf/black/blob/HEAD/CHANGES.md#Version-26101)

[Compare Source](psf/black@26.10.0...26.10.1)

##### Highlights

This release fixes a security issue in Black's bundled GitHub Action. Repositories that
use the action are encouraged to update to the latest version of Black immediately. This
update is received automatically when using `psf/black@stable`, and is independent of
the version of Black installed by the action.

When the GitHub Action reads version specifiers from `tool.black.required-version`, it
now only accepts released versions of Black, as it already did for `black` requirements
in dependency lists. Other values, such as URL references, are now rejected. This issue
has been registered as `GHSA-cg8m-r9f2-5wm2`; a CVE identifier is pending.

##### Stable style

- Fix a long Jupyter notebook assignment magic (for example `x = !ls -la`) being wrapped
  in parentheses, which IPython can no longer run; such cells are now left unchanged
  ([#&#8203;5481](psf/black#5481))
- Keep repeated lines outside the selected `--line-ranges` unchanged ([#&#8203;5436](psf/black#5436))
- Fix `--line-ranges` formatting lines that follow a statement when formatting joins or
  re-indents that statement ([#&#8203;5484](psf/black#5484))
- Fix `--line-ranges` crashing with an internal error when an unselected statement has a
  `# fmt: skip` comment on the last line before a closing bracket ([#&#8203;5477](psf/black#5477))
- Prevent moving an encoding declaration (for example `# -*- coding: latin-1 -*-`) onto
  the first two lines of a file ([#&#8203;5487](psf/black#5487))
- Fix adding an extra trailing blank line inside a multi-line module docstring when its
  last line is near the line length limit ([#&#8203;5494](psf/black#5494))

##### Preview style

- Do not split short expressions on delimiters (such as binary operators, comparisons,
  or comprehensions) inside brackets when preceded by a standalone comment ([#&#8203;5455](psf/black#5455))
- Fix the unstable `string_processing` feature removing backslash-newline sequences from
  raw strings, which changed their value ([#&#8203;5482](psf/black#5482))
- Avoid adding unnecessary parentheses around unbreakable right-hand side expressions in
  assignments (such as annotated assignments or subscript targets) ([#&#8203;5473](psf/black#5473))
- Parenthesize expressions with parameter comments when they exceed the line length
  under `--preview` ([#&#8203;5442](psf/black#5442))
- Fix `wrap_long_dict_values_in_parens` dropping the parentheses around a right-hand
  side that contains a dictionary, leaving a line over the length limit ([#&#8203;5492](psf/black#5492))
- Fix the unstable `string_processing` feature adding a space after `*` or `**` in a PEP
  695 type parameter (`* Ts = ...`) when it splits a string in the parameter's default
  ([#&#8203;5504](psf/black#5504))
- Avoid unnecessary line splits of trailers (such as indexing/subscripts) when an
  earlier bracket split exceeds the line length only due to a trailing comment ([#&#8203;5498](psf/black#5498))

##### Configuration

- Add `--cache-dir` to configure the cache directory from the command line ([#&#8203;5433](psf/black#5433))
- Don't cache a file as formatted after formatting or checking it with `--line-ranges`,
  which made a later full `black --check` pass and `black` skip the unformatted lines
  ([#&#8203;5476](psf/black#5476))
- Respect a `.gitignore` that starts with a UTF-8 byte order mark. The mark became part
  of the first pattern, so that pattern never matched and Black formatted files that git
  ignores ([#&#8203;5497](psf/black#5497))

##### Performance

- Avoid quadratic runtime when splitting very long lines with many trailing bracket
  pairs (such as consecutive subscripts) ([#&#8203;5475](psf/black#5475))

##### Integrations

- Fix the GitHub Action crashing on dependency-group includes when `use_pyproject` is
  enabled ([#&#8203;5479](psf/black#5479))
- When the GitHub Action reads version specifiers from `tool.black.required-version`, it
  now only accepts released versions of Black, as it already did for `black`
  requirements in dependency lists. Other values, such as URL references, are now
  rejected. ([#&#8203;5510](psf/black#5510))

</details>

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Reviewed-on: https://git.tainton.uk/luke/instant-msg-api/pulls/292
Co-authored-by: renovate[bot] <renovate-bot@git.tainton.uk>