deps: update strum monorepo to v0.28.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
strum	dependencies	minor	=0.27.2 → =0.28.0
strum_macros	dependencies	minor	=0.27.2 → =0.28.0

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Release Notes

Peternator7/strum (strum)

v0.28.0

Compare Source

• #​461: Allow any kind of passthrough attributes on EnumDiscriminants.

  • Previously only list-style attributes (e.g. #[strum_discriminants(derive(...))]) were supported. Now path-only
    (e.g. #[strum_discriminants(non_exhaustive)]) and name/value (e.g. #[strum_discriminants(doc = "foo")])
    attributes are also supported.

• #​462: Add missing #[automatically_derived] to generated impls not
  covered by #​444.

• #​466: Bump MSRV to 1.71, required to keep up with updated syn and
  windows-sys dependencies. This is a breaking change if you're on an old version of rust.

• #​469: Use absolute paths in generated proc macro code to avoid
  potential name conflicts.

• #​465: Upgrade phf dependency to v0.13.

• #​473: Fix cargo fmt / clippy issues and add GitHub Actions CI.

• #​477: strum::ParseError now implements core::fmt::Display instead
  std::fmt::Display to make it #[no_std] compatible. Note the Error trait wasn't available in core until 1.81
  so strum::ParseError still only implements that in std.

• #​476: Breaking Change - EnumString now implements From<&str>
  (infallible) instead of TryFrom<&str> when the enum has a #[strum(default)] variant. This more accurately
  reflects that parsing cannot fail in that case. If you need the old TryFrom behavior, you can opt back in using
  parse_error_ty and parse_error_fn:

  #[derive(EnumString)]
  #[strum(parse_error_ty = strum::ParseError, parse_error_fn = make_error)]
  pub enum Color {
      Red,
      #[strum(default)]
      Other(String),
  }
  
  fn make_error(x: &str) -> strum::ParseError {
      strum::ParseError::VariantNotFound
  }

• #​431: Fix bug where EnumString ignored the parse_err_ty
  attribute when the enum had a #[strum(default)] variant.

• #​474: EnumDiscriminants will now copy default over from the
  original enum to the Discriminant enum.

  #[derive(Debug, Default, EnumDiscriminants)]
  #[strum_discriminants(derive(Default))] // <- Remove this in 0.28.
  enum MyEnum {
      #[default] // <- Will be the #[default] on the MyEnumDiscriminant
      #[strum_discriminants(default)] // <- Remove this in 0.28
      Variant0,
      Variant1 { a: NonDefault },
  }

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