Move launcher errors under launcher package

[amirbenun]

What does this PR do?
Moving launcher errors to be defined on the same package as the launcher.
The motivation behind maintaining the two on the same package is that the launcher already has the errors as a dependency. The launcher can report a different status to the fleet based on the returned error. Which means, the errors better be defined on the same package.

Related Issues

Checklist

• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary README/documentation (if appropriate)

[mergify]

This pull request does not have a backport label. Could you fix it @amirbenun? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 8./d branch. /d is the digit
  NOTE: backport-skip has been added to this pull request.

[github-actions]

Cloudbeat CI 🤖

Allure Report: http://csp-allure-reports.s3.amazonaws.com/allure_reports/cloudbeat/prs/628/index.html