fix: --initial --dry-run creates Changelog (#18)

[djantea]

Contributor checklist

• My commit messages follow the Conventional Commit Message Format
  For example: fix: Multiply by appropriate coefficient, or
  feat(Calculator): Correctly preserve history
  Any explanation or long form information in your commit message should be
  in a separate paragraph, separated by a blank line from the primary message
• Bug fixes include regression tests
• Features include unit/acceptance tests

[sourcelevel-bot]

Hello, @djantea! This is your first Pull Request that will be reviewed by SourceLevel, an automatic Code Review service. It will leave comments on this diff with potential issues and style violations found in the code as you push new commits. You can also see all the issues found on this Pull Request on its review page. Please check our documentation for more information.

[coveralls]

Pull Request Test Coverage Report for Build 89

• 2 of 3 (66.67%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.07%) to 86.528%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/mix/tasks/git_ops.release.ex	0	1	0.0%

Totals
Change from base Build 88:	0.07%
Covered Lines:	167
Relevant Lines:	193

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💛 - Coveralls

[zachdaniel]

Thank you for your contribution!