feat: serviceAccount and extraContainers to helm chart values

[kostas-theo]

Problem

• The helm chart doesn't allow for using my own Kubernetes service account, implicitly using default. This should ideally be configurable.
• The helm chart doesn't allow for passing in extra containers into the Kubernetes deployment for marquez which open up various deployment customization options (in my case for using google's cloud-sql-proxy container image for Cloud SQL auth).

Solution

Added the values marquez.serviceAccount and marquez.extraContaiers to the helm chart values, with defaults set which maintain the current functionality.

One-line summary: serviceAccount and extraContaiers to helm chart values

Checklist

• You've signed-off your work
• Your changes are accompanied by tests (if relevant)
• Your change contains a small diff and is self-contained
• You've updated any relevant documentation (if relevant)
• You've included a one-line summary of your change for the CHANGELOG.md (Depending on the change, this may not be necessary).
• You've versioned your .sql database schema migration according to Flyway's naming convention (if relevant)
• You've included a header in any source code files (if relevant)

[boring-cyborg]

Thanks for opening your first pull request in the Marquez project! Please check out our contributing guidelines (https://github.com/MarquezProject/marquez/blob/main/CONTRIBUTING.md).

[netlify]

✅ Deploy Preview for peppy-sprite-186812 canceled.

Name	Link
🔨 Latest commit	a559257
🔍 Latest deploy log	https://app.netlify.com/sites/peppy-sprite-186812/deploys/65fa292861264300081d8cfd

[kostas-theo]

@wslulciuc - Hi there :) Not sure but looks like the unit test was cancelled? Not changing any code here which impacts on tests. How should I proceed?

[wslulciuc]

Minor: Typo extraContaiers -> extraContainers

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.47%. Comparing base (0e45fe0) to head (a559257).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2766   +/-   ##
=========================================
  Coverage     84.47%   84.47%           
  Complexity     1429     1429           
=========================================
  Files           251      251           
  Lines          6460     6460           
  Branches        299      299           
=========================================
  Hits           5457     5457           
  Misses          850      850           
  Partials        153      153           

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[wslulciuc]

@kostas-theo, I've fixed the CI for your PR (see #2769) and left a minor typo comment; looks good to merge otherwise!

[wslulciuc]

LGTM 💯 🥇

[boring-cyborg]

Great job! Congrats on your first merged pull request in the Marquez project!