Gh-1072: Update Javadoc workflow

[GCHQDeveloper314]

Related Issue

• Resolve Update Javadoc workflow #1072

[codecov-commenter]

Codecov Report

Merging #1073 (69fb55e) into v2-alpha (1490279) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@              Coverage Diff               @@
##             v2-alpha    #1073      +/-   ##
==============================================
+ Coverage       45.25%   45.29%   +0.04%     
  Complexity        101      101              
==============================================
  Files              25       25              
  Lines             895      892       -3     
  Branches           72       72              
==============================================
- Hits              405      404       -1     
+ Misses            460      458       -2     
  Partials           30       30              

Impacted Files	Coverage Δ
...cetesting/ingest/BytesWritableMapperGenerator.java	70.00% <100.00%> (+4.78%)	⬆️

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