[YAML] Java Filter and explode operations.

[robertwb]

This is a follow-up on top of #28657

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[github-actions]

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[Polber]

LGTM. Should probably wait until #28657 is merged to make sure there are no conflicts

[codecov]

Codecov Report

Merging #29110 (b0867b1) into master (b513420) will decrease coverage by 0.01%.
Report is 10 commits behind head on master.
The diff coverage is 0.00%.

❗ Current head b0867b1 differs from pull request most recent head e33f510. Consider uploading reports for the commit e33f510 to get more accurate results

@@            Coverage Diff             @@
##           master   #29110      +/-   ##
==========================================
- Coverage   38.32%   38.32%   -0.01%     
==========================================
  Files         688      688              
  Lines      101843   101862      +19     
==========================================
+ Hits        39035    39041       +6     
- Misses      61228    61241      +13     
  Partials     1580     1580              

Flag	Coverage Δ
python	29.93% <0.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
sdks/python/apache_beam/yaml/yaml_mapping.py	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes

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