fix: Fix IsValidMessage method adding a new exception for merge from master to the branch

[esequielvirtuoso]

What?

[Here goes your feature/bug-fix proposal](fix: Fix IsValidMessage method adding a new exception for merge from master to the branch)

Type of change?

• [fix]: A bug fix

Note: Remove the non-checked options

Why?

Avoid commit-lint breaking when it's a merge from the master to the developer branch.

How?

Adding a new pattern to IsValidMessage function.

How has this been tested?

• Unit tests

Before submitting a PR please make sure to check if:

• The code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented on my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• The changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and/or existing unit tests pass locally with my changes
• New and/or existing integration tests pass locally with my changes

[josuefmachado]

Nice