Bump npm package version to 0.4.3

0.4.2

Release v0.4.1: Fix npm installer for correct release filenames

- Update version to 0.4.1 (npm doesn't allow republishing same version)
- Fix installer to use 'v' prefix in filenames (rustdex-v0.4.1-*.zip)
- Update CHANGELOG and README

Release v0.4.0: Add npm package distribution

- Add npm package for easy installation (npm install -g rustdex)
- Automatic platform detection and binary download from GitHub Releases
- Cross-platform support: macOS (ARM64/x64), Linux (ARM64/AMD64), Windows (ARM64/AMD64)
- Update version to 0.4.0 throughout the project
- Add publishing helper script (publish-npm.sh)
- Update documentation with npm as recommended installation method
- Add comprehensive npm setup guide (NPM_SETUP.md)
- Update CHANGELOG with new features

0.3.1

v0.3.0: Expand excluded directories for indexing

- Add .worktree folder to skip list (git worktrees)
- Add comprehensive exclusion list:
  - Version control: .svn, .hg, .bzr
  - Package managers: bower_components, jspm_packages
  - Python: .tox, .eggs, .mypy_cache, .pytest_cache, .ruff_cache
  - Go/PHP: vendor, third_party, third-party
  - Build outputs: dist, build
- Document excluded directories in README.md
- Update version to 0.3.0

Bump version to 0.2.0, add --json support to index and list-repos, ad…

…d --version flag, add symbol_count to RepoInfo

Disable macOS x64 build - certificate import issue on macos-14