ci: [+] github actions concurrency

[eruizalo]

Description

A concurrency will be added to GitHub actions to avoid multiple jobs to run the same workflow:
https://docs.github.com/es/actions/using-workflows/workflow-syntax-for-github-actions#concurrency
This change will affect:

• CI -> if two workflows are executing, first will be killed and the last one will run
• publish -> if two workflows are executing, first will be killed and the last one will run
• release -> sequential execution.

Related Issue

N/A

Motivation and Context

It is not required, but it will lighten GitHub executions

How Has This Been Tested?

Not tested, just following GitHub docs.

• This pull request contains appropriate tests?

[codecov]

Codecov Report

Merging #181 (bb8ef6c) into main (4ea815c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #181   +/-   ##
=======================================
  Coverage   95.92%   95.92%           
=======================================
  Files          42       42           
  Lines         785      785           
  Branches       10       10           
=======================================
  Hits          753      753           
  Misses         32       32           

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