chore(commit): remove commitizen requirement

Signed-off-by: nopeitsnothing <no@anonymousplanet.org>

.cz.toml

@@ -1,10 +0,0 @@
-[tool.commitizen]
-bump_message = "release $current_version → $new_version []"
-annotated_tag = true
-version = "1.2.1"
-update_changelog_on_bump = false
-gpg_sign = true
-allow_abort = true
-version_files = [
-    "_config.yml:version"
-]