Upgrade to the Node 20

[jirkafajfr]

When the aws-actions/aws-secretsmanager-get-secrets@v1 is used it is producing following warning on the summary page:

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: aws-actions/aws-secretsmanager-get-secrets@v1. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

Bumping runtime to the node20. The documentation also says:

Ensure your workflows use the latest versions of actions that are running on Node 20.

Upgrading actions/checkout and codecov/codecov-action to their latest major versions.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (022e891) 100.00% compared to head (818323c) 100.00%.

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Additional details and impacted files

@@            Coverage Diff            @@
##              main       #71   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            4         4           
  Lines          132       132           
  Branches        30        30           
=========================================
  Hits           132       132           

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