ROU-4580: Make the bot commits signed

[rugoncalves]

This PR is changes the github workflows so that all manual commits are signed.

What was happening

• The commits performed by the bot, were not signed
• The commits will now be blocked if not signed

What was done

• Create helper Git actions that will work as an abstraction layer once we start
  • manual-git-commit runs the required git commands to perform a commit.
  • setup-gpg sets the git to be able to sign the commits, with the gpg
  • signed-gpg-commit invokes the two actions above, for simplicity in the workflow, and creating an abstractions so that in the future, we can replace the external action being used by another, without having to change the workflow
• Added the workflows to:
  • Run lint and compile the code on PR to dev
  • Generate the documentation when a push occurs to main

Test Steps

1. Perform a PR to dev
2. Accept the PR

Checklist

• tested on a fork
• documented the code
• clean all warnings and errors of eslint
• requires changes in OutSystems (if so, provide a module with changes)
• requires new sample page in OutSystems (if so, provide a module with changes)

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

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