downstream 1.6.19

downstream provides efficient, constant-space implementations of stream curation algorithms

[bumpver]
current_version = "v1.6.19"
version_pattern = "vMAJOR.MINOR.PATCH"
commit = true
push = true

[bumpver.file_patterns]
"Cargo.toml" = [
  'version = "{pep440_version}"',
]