Improvements for reference data in tests workflow

[epassaro]

📝 Description

Type: 🚀 feature | 🎢 infrastructure

• Addresses issues of the download_reference_data.sh script:
  • Do not allow unbound variables (e.g. GITHUB_WORKSPACE)
  • Allow downloading different versions of reference data based on commit SHA. If REFDATA_SHA is blank, proceed to download the latest commit from master.

📌 Resources

🚦 Testing

How did you test these changes?

• Testing pipeline
• Other method (describe)
• My changes can't be tested (explain why)

Locally, set GITHUB_WORKSPACE="/path/to/folder" and REFDATA_SHA="" (o use a commit SHA instead)

☑️ Checklist

• I requested two reviewers for this pull request
• I updated the documentation according to my changes
• I built the documentation by applying the build_docs label

Note: If you are not allowed to perform any of these actions, ping (@) a contributor.

[codecov]

Codecov Report

Merging #2055 (4d46ba5) into master (6cf502f) will not change coverage.
The diff coverage is n/a.

❗ Current head 4d46ba5 differs from pull request most recent head da8d2c1. Consider uploading reports for the commit da8d2c1 to get more accurate results

@@           Coverage Diff           @@
##           master    #2055   +/-   ##
=======================================
  Coverage   71.88%   71.88%           
=======================================
  Files         133      133           
  Lines       12386    12386           
=======================================
  Hits         8904     8904           
  Misses       3482     3482           

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[andrewfullard]

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