chore: address SonarCloud code quality issues

[nanotaboada]

Move GitHub Actions permissions from workflow level to job level for better security and least privilege principle.
(githubactions:S8264)

Replace single brackets with double brackets in shell conditionals for safer and more feature-rich conditional tests.
(shelldre:S7688)

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[coderabbitai]

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feature/sonarqube-findings-githubactions

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00%	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (b1f8891)	131	119	90.84%
Head commit (77340ec)	131 (+0)	119 (+0)	90.84% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#458)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

See your quality gate settings    Change summary preferences

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.65%. Comparing base (b1f8891) to head (77340ec).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #458   +/-   ##
=======================================
  Coverage   89.65%   89.65%           
=======================================
  Files           3        3           
  Lines         116      116           
=======================================
  Hits          104      104           
  Misses         12       12           

Components	Coverage Δ
Services	79.31% <ø> (ø)
Routes	100.00% <ø> (ø)

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