RUM-11897: Add scripts to set/get Vault secrets & Migrate CI

[ambushwork]

What does this PR do?

A brief description of the change being made with this pull request.

Motivation

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Additional Notes

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Review checklist (to be filled by reviewers)

• [ ] Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• [ ] Make sure you discussed the feature or bugfix with the maintaining team in an Issue
• [ ] Make sure each commit and the PR mention the Issue number (cf the CONTRIBUTING doc)

[datadog-datadog-prod-us1[bot]]

🎯 Code Coverage
• Patch Coverage: 100.00%
• Total Coverage: 70.80% (-0.45%)
View detailed report

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[codecov-commenter]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 70.84%. Comparing base (ee38a9a) to head (5bde49e). :warning: Report is 7 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2974      +/-   ##
===========================================
- Coverage    70.91%   70.84%   -0.07%     
===========================================
  Files          829      829              
  Lines        30381    30381              
  Branches      5184     5184              
===========================================
- Hits         21543    21523      -20     
- Misses        7373     7378       +5     
- Partials      1465     1480      +15     

see 29 files with indirect coverage changes

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