Fix code issues found with automated code scanning

[juarezr]

Problem description

• I have enabled some code quality and code security scanning tools in the repository CI/CD actions.
• After running they found multiple issues and nitpicks about the code.
• As these checks aren't impeditive to PR workflow, It's possible to tackle the results:
  • As needed
  • as we have volunteers willing to work on it

For tackling this we must decide on one or more strategies like:

• Fixing each of the code issues found by the tools
• Configuring each tool according to the needs of the project
• Defining code quality rules that suit the scanning like:
  • Code formatting
  • Review rules
  • Issue resolution rules
• Disabling some scanning and checks

Code scanning tools and results example

Full results are in the Security section of this repository.

CodeQL No new or fixed alerts 
Code scanning results / Bandit (reported by Codacy) Successful in 1m — 206 new alerts, 196 fixes
Code scanning results / Checkov (reported by Codacy) Successful in 1m — 2 new alerts
Code scanning results / CodeQL Successful in 3s — No new or fixed alerts
Code scanning results / Jacksonlinter (reported by Codacy) Successful in 1m — 2 new alerts, 2 fixes
Code scanning results / Prospector (reported by Codacy) Successful in 1m — 1,909 new alerts, 1,352 fixes
Code scanning results / Pylint (reported by Codacy) Successful in 1m — 4,259 new alerts, 4,254 fixes
Code scanning results / Pylintpython3 (reported by Codacy) Successful in 1m — 3,765 new alerts, 3,793 fixes
Code scanning results / Remark-lint (reported by Codacy) Successful in 1m — 16 new alerts
Code scanning results / Spectral (reported by Codacy)