dunn.dev/pipeline 4.6.1

Hotfix off the 4.6.0 tag. A **patch**: no template input added, removed
or renamed. A consumer releasing aarch64 binaries bumps
`rust-release-binary` to `@4.6.1`.

### Fixed

- **`rust-release-binary`: the `aarch64-unknown-linux-gnu` and
  `aarch64-apple-darwin` legs build again.** Their `BUILD_CMD` was
  `cargo zigbuild`, so the recipe ran `cargo zigbuild build`, which
  cargo-zigbuild 0.23.0 rejects (`unexpected argument 'build' found`).
  `BUILD_CMD` now names the binary, `cargo-zigbuild`, whose `build` alias
  takes the same arguments. The `x86_64-unknown-linux-gnu` leg was never
  affected.