base64-ng 2.0.3

[eldryoth]

base64-ng 2.0.3

base64-ng 2.0.3 is a synchronized maintenance release. The core runtime
implementation and public 2.0 API are unchanged.

Changes

• Updates the active release toolchain to Rust 1.98.1 while retaining verified
  compatibility with the Rust 1.90.0 MSRV.
• Updates the exact-pinned sanitization companion dependency to 2.0.4.
• Updates taiki-e/install-action to 2.87.4 with an immutable commit pin.
• Confirms the remaining Rust dependencies, release tools, and GitHub Actions
  are current at release initiation.
• Synchronizes all Rust companion crates and
  @valkyoth/base64-ng-wasm-loader at 2.0.3.
• Makes high-assurance target eligibility independent of additive SIMD feature
  unification, with compile-fail regression checks for wasm and unattested
  AArch64.

No codec behavior, public API contract, SIMD admission decision, or MSRV
change is included.

---

This discussion was created from the release base64-ng 2.0.3.