v0.2.1
Patch release — fixes RPM/pacman package version label.
v0.2.0 shipped packages stamped 0.1.0 because packaging/nfpm.yaml had
a hardcoded version. The Taskfile now exports VERSION (extracted from
Cargo.toml) and nfpm.yaml uses ${VERSION} expansion, so rpm/pacman
packages track the binary version automatically.
No functional changes vs v0.2.0.