Log Message:
py310-black: update to 22.1.0.

## 22.1.0

At long last, _Black_ is no longer a beta product! This is the first non-beta release
and the first release covered by our new stability policy.

### Highlights

- **Remove Python 2 support** (#2740)
- Introduce the `--preview` flag (#2752)

### Style

- Deprecate `--experimental-string-processing` and move the functionality under
  `--preview` (#2789)
- For stubs, one blank line between class attributes and methods is now kept if \ 
there's
  at least one pre-existing blank line (#2736)
- Black now normalizes string prefix order (#2297)
- Remove spaces around power operators if both operands are simple (#2726)
- Work around bug that causes unstable formatting in some cases in the presence \ 
of the
  magic trailing comma (#2807)
- Use parentheses for attribute access on decimal float and int literals (#2799)
- Don't add whitespace for attribute access on hexadecimal, binary, octal, and \ 
complex
  literals (#2799)
- Treat blank lines in stubs the same inside top-level `if` statements (#2820)
- Fix unstable formatting with semicolons and arithmetic expressions (#2817)
- Fix unstable formatting around magic trailing comma (#2572)

### Parser

- Fix mapping cases that contain as-expressions, like `case {"key": 1 \ 
| 2 as password}`
  (#2686)
- Fix cases that contain multiple top-level as-expressions, like `case 1 as a, 2 \ 
as b`
  (#2716)
- Fix call patterns that contain as-expressions with keyword arguments, like
  `case Foo(bar=baz as quux)` (#2749)
- Tuple unpacking on `return` and `yield` constructs now implies 3.8+ (#2700)
- Unparenthesized tuples on annotated assignments (e.g
  `values: Tuple[int, ...] = 1, 2, 3`) now implies 3.8+ (#2708)
- Fix handling of standalone `match()` or `case()` when there is a trailing \ 
newline or a
  comment inside of the parentheses. (#2760)
- `from __future__ import annotations` statement now implies Python 3.7+ (#2690)

### Performance

- Speed-up the new backtracking parser about 4X in general (enabled when
  `--target-version` is set to 3.10 and higher). (#2728)
- _Black_ is now compiled with [mypyc](https://github.com/mypyc/mypyc) for an \ 
overall 2x
  speed-up. 64-bit Windows, MacOS, and Linux (not including musl) are supported. \ 
(#1009,
  #2431)

### Configuration

- Do not accept bare carriage return line endings in pyproject.toml (#2408)
- Add configuration option (`python-cell-magics`) to format cells with custom \ 
magics in
  Jupyter Notebooks (#2744)
- Allow setting custom cache directory on all platforms with environment variable
  `BLACK_CACHE_DIR` (#2739).
- Enable Python 3.10+ by default, without any extra need to specify
  `--target-version=py310`. (#2758)
- Make passing `SRC` or `--code` mandatory and mutually exclusive (#2804)

### Output

- Improve error message for invalid regular expression (#2678)
- Improve error message when parsing fails during AST safety check by embedding the
  underlying SyntaxError (#2693)
- No longer color diff headers white as it's unreadable in light themed terminals
  (#2691)
- Text coloring added in the final statistics (#2712)
- Verbose mode also now describes how a project root was discovered and which \ 
paths will
  be formatted. (#2526)

### Packaging

- All upper version bounds on dependencies have been removed (#2718)
- `typing-extensions` is no longer a required dependency in Python 3.10+ (#2772)
- Set `click` lower bound to `8.0.0` (#2791)

### Integrations

- Update GitHub action to support containerized runs (#2748)

### Documentation

- Change protocol in pip installation instructions to `https://` (#2761)
- Change HTML theme to Furo primarily for its responsive design and mobile support
  (#2793)
- Deprecate the `black-primer` tool (#2809)
- Document Python support policy (#2819)