fix(get-next-bump): fix to permit usage of --get-next option even when update_changelog_on_bump is set to true

[Lowaiz]

Description

With the configuration options update_changelog_on_bump set to True, the command cz bump --get-next crashed, due to the mutual exclusive options --get-next and --changelog/--changelog-to-stdout.

Changing this behavior to still throw a conflict when using both CLI options, but let --get-next take the precedence over update_changelog_on_bump configuration.

Checklist

• Add test cases to all the changes you introduce
• Run ./scripts/format and ./scripts/test locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Expected behavior

Now the configuration options update_changelog_on_bump can be set to whatever you want when using the cz bump --get-next command.

Steps to Test This Pull Request

1. Build a commitizen config with update_changelog_on_bump flag set to true.
2. Add some commits to the target test project.
3. Run cz bump --get-next
4. The command should work and not throw an error.

Additional context

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.55%. Comparing base (120d514) to head (e5d6797).
Report is 531 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1301      +/-   ##
==========================================
+ Coverage   97.33%   97.55%   +0.21%     
==========================================
  Files          42       55      +13     
  Lines        2104     2613     +509     
==========================================
+ Hits         2048     2549     +501     
- Misses         56       64       +8     

Flag	Coverage Δ
unittests	97.55% <100.00%> (+0.21%)	⬆️

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[Lowaiz]

@Lee-W @noirbizarre @woile
Hello,
Can one of you review this PR ?
As I did not receive any update on my response to the comment, I try the direct ping, sorry for the inconvenience !

[Lee-W]

@Lee-W @noirbizarre @woile Hello, Can one of you review this PR ? As I did not receive any update on my response to the comment, I try the direct ping, sorry for the inconvenience !

Will take a look these days. Thanks for reminding me!