fix: ensure msr cli flags take precedence over their semrel equivalents

[GeeWizWow]

Fixes #78 - CLI flags not taking any effect when also defined in .releaserc.js file

Changes

Given that msr only shares two options with semrel, debug and dryRun, set them manually rather than merging the full flags object.

• --debug: Can only be passed to semrel as a CLI flag, given we are invoking semrel programmatically, we always default to the msr version.
• --dryRun: Use the msr version if specified regardless of if it is true or false, otherwise fallback to the semrel value.

Chores

• [x] New code is covered by tests
• [x] All the changes are mentioned in docs (readme.md)

[antongolub]

@GeeWizWow, thanks a lot!

[qiwibot]

:tada: This PR is included in version 6.5.1 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: