Produce changelog with cz bump --dry-run --changelog-to-stdout

[bavedarnow]

Description

I'm using the commitizen pre-commit hook paired with renovate for automated dependency updates.

I'd like to test the commitizen functionality before merging the upgrade PR. One thing I'd like to see is if the changelog is being generated correctly.

Issue:

pairing the --dry-run arg with --changelog-to-stdout does not produce the changelog

Steps to reproduce

1. checkout your repository at an older version tag git checkout 1.0.0
2. soft reset to a newer version git reset --soft 1.1.0
3. cz bump --changelog-to-stdout --dry-run

not sure if this matters, but changelog_incremental = true

Current behavior

cz bump --changelog-to-stdout --dry-run
bump: version 1.0.0 → 1.1.0
tag to create: 1.1.0
increment detected: MINOR

Desired behavior

cz bump --changelog-to-stdout --dry-run
bump: version 1.0.0 → 1.1.0
tag to create: 1.1.0
increment detected: MINOR

## 1.1.0 (2022-07-25)

### CHANGELOG SHOWS UP HERE

Screenshots

No response

Environment

cz version --report
Commitizen Version: 2.27.1
Python Version: 3.10.4 (main, May 26 2022, 14:56:41) [Clang 13.1.6 (clang-1316.0.21.2.5)]
Operating System: Darwin

[woile]

Seems like a valid bug. I will try to submit a fix soon

[bavedarnow]

Seems like a valid bug. I will try to submit a fix soon

I opened a PR here: #539