Use dedicated cdf test project for CD workflow

[erlendvollset]

Using a dedicated cdf project for CD workflow for 2 reasons:

• No longer want a test project in staging since it's less stable
• Don't want devs to have write access to this project, so that we don't risk breaking master builds and we force devs to create test fixtures for setting up their data instead of ingesting it manually.

Variables and secrets have been updated accordingly through the github UI.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.43%. Comparing base (01e65f4) to head (f870fc7).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2128      +/-   ##
==========================================
+ Coverage   90.38%   90.43%   +0.05%     
==========================================
  Files         152      152              
  Lines       23127    23127              
==========================================
+ Hits        20903    20916      +13     
+ Misses       2224     2211      -13     

see 6 files with indirect coverage changes

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[finnag]

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