chore: 🔧 update changelog on bump (#28)

## Description

Update `.cz` to include an update of the changelog when the version is
bumped.

Based on [this
comment](seedcase-project/seedcase-sprout#889 (review))

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This PR needs a quick review.

Author: signekb

.cz.toml

@@ -1,7 +1,6 @@
 [tool.commitizen]
 bump_message = "build(version): update version from $current_version to $new_version [skip ci]"
-# Don't implement yet.
-update_changelog_on_bump = false
+update_changelog_on_bump = true
 version_provider = "poetry"
 version_files = [
     "pyproject.toml"