[pull] main from chronotope:main - #7

Updates the requirements on [windows-bindgen](https://github.com/microsoft/windows-rs) to permit the latest version.
- [Release notes](https://github.com/microsoft/windows-rs/releases)
- [Commits](microsoft/windows-rs@0.53.0...0.54.0)

---
updated-dependencies:
- dependency-name: windows-bindgen
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: spuradage <spuradage@outlook.com>

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

… that can panic because of invalid user input.

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 5 to 6.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v5...v6)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Updates the requirements on [similar-asserts](https://github.com/mitsuhiko/similar-asserts) to permit the latest version.
- [Changelog](https://github.com/mitsuhiko/similar-asserts/blob/main/CHANGELOG.md)
- [Commits](mitsuhiko/similar-asserts@1.6.1...2.0.0)

---
updated-dependencies:
- dependency-name: similar-asserts
  dependency-version: 2.0.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

TimeZoneName::new rejected designations outside 3-7 characters or [0-9A-Za-z+-]. zic and glibc accept longer names and '_', so a valid /etc/localtime using such a designation failed to parse and chrono::Local silently fell back to UTC.

Store the designation in a 32-byte length-prefixed buffer (TimeZoneName/LocalTimeType stay Copy, no API change), accept up to 31 characters, truncating longer names instead of failing the parse, and allow '_'. Adds regression tests.

Fixes #1793

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Web-target cfg gates (the wasm-bindgen / js-sys code paths and the
`wasm-pack test --node` harness) currently key on
`target_arch = "wasm32"`. As a result they silently disappear when
building for `wasm64-unknown-unknown`: the `wasm-bindgen` and `js-sys`
optional dependencies are not pulled in, `Utc::now()`, `Local`'s offset
lookup, and the `js_sys::Date` conversions fall back to the non-web
default (which calls `SystemTime::now()` and panics on wasm), and the
`tests/wasm.rs` harness is compiled out.

Switching the gates to `target_family = "wasm"` makes the same web
backend apply to any WebAssembly target, including `wasm64`. The
existing `not(any(target_os = "emscripten", target_os = "wasi"[, "linux"]))`
exclusions are preserved, so behavior on `wasm32-unknown-emscripten`,
`wasm32-wasip*` and emscripten/WASI variants is unchanged.

`target_family = "wasm"` has been stable since Rust 1.54, well below
chrono's MSRV (1.62).

`wasm64-unknown-unknown` is a Tier 3 target, so it cannot be added to
CI, but the same code paths are still exercised by the existing
`wasm-pack test --node --features wasmbind` job on `wasm32`.

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 6 to 7.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v6...v7)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

`NaiveDateDaysIterator` and `NaiveDateWeeksIterator` implemented
`DoubleEndedIterator` by walking their single `value` cursor backwards
from the start, while `size_hint`/`len` reported the number of steps up
to `NaiveDate::MAX`. As a result reversing them (e.g.
`iter_days().take(n).rev()`) produced dates far outside the intended
range.

Track an exclusive upper bound `end` so each iterator models the
half-open range `[value, end)`: `next` advances `value` from the front
and `next_back` lowers `end` from the back. `nth_back` skips in O(1) so
`take(n).rev()` stays cheap even though the range extends to
`NaiveDate::MAX`. Forward iteration and `size_hint` are unchanged.

Fixes #1757

`from_isoywd_opt` is a fallible `_opt` constructor documented to return
`None` for out-of-range years, but it panicked for `i32::MIN` /
`i32::MAX` because the internal `year - 1` / `year + 1` step overflowed.
Use checked arithmetic and return `None` there; such years are far
outside the range of `NaiveDate` anyway.

Fixes #1808