Fix: remove epitrix dependency and add clean_label function

[GeraldineGomez]

This PR includes:

• The epitrix dependency was removed from sivirep.
• The code for the clean_labels function was added to the package as an internal function.
• This change has been referenced in the sivirep documentation, making reference to epitrix and its license.
• The strngi dependency was included after an evaluation process instead of epitrix, since its dependency tree includes only two dependencies, which are already referenced in the package's DESCRIPTION file.

[github-actions]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 5 existing dependencies (direct and indirect)
• Removes 2 existing system dependencies

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)

[github-actions]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 5 existing dependencies (direct and indirect)
• Removes 2 existing system dependencies

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)

[github-actions]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 5 existing dependencies (direct and indirect)
• Removes 2 existing system dependencies

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)

[github-actions]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 5 existing dependencies (direct and indirect)
• Removes 2 existing system dependencies

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)

[Bisaloo]

I would also probably add @noRd here so that no help file is created and this doesn't cause issues with CRAN.

[GeraldineGomez]

Hi Hugo,

The tag was added in the commit: a307508

Thanks for the review!

[Bisaloo]

Note that the other dependencies are listed alphabetically. You'll need to move this down if you want to keep with this convention.

[GeraldineGomez]

This was resolved in commit: c3483e2

[github-actions]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 5 existing dependencies (direct and indirect)
• Removes 2 existing system dependencies

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)

[github-actions]

This pull request:

• Adds 0 new dependencies (direct and indirect)
• Adds 0 new system dependencies
• Removes 5 existing dependencies (direct and indirect)
• Removes 2 existing system dependencies

(Note that results may be inaccurate if you branched from an outdated version of the target branch.)