[Gemini] Add ExpireSnapshots maintenance operation to Iceberg IO

[jrmccluskey]

Implements classes and transforms for the ExpireSnapshots Iceberg table maintenance operation.

Fixes #39224

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[github-actions]

Assigning reviewers:

R: @chamikaramj for label java.
R: @ahmedabu98 for label iceberg.

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[github-actions]

Reminder, please take a look at this pr: @chamikaramj @ahmedabu98

[github-actions]

Assigning new set of reviewers because Pr has gone too long without review. If you would like to opt out of this review, comment assign to next reviewer:

R: @kennknowles for label java.
R: @ahmedabu98 for label iceberg.

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[kennknowles]

R: @ahmedabu98

[github-actions]

Reminder, please take a look at this pr: @kennknowles @ahmedabu98

[github-actions]

Assigning new set of reviewers because Pr has gone too long without review. If you would like to opt out of this review, comment assign to next reviewer:

R: @Abacn for label java.
R: @chamikaramj for label iceberg.

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[kennknowles]

Does the bot not cede control any more?

[jrmccluskey]

Not sure how the bot handles the R: tag syntax now, but it's better to just use github's built-in reviewer assignment instead if you're re-routing anyway

[github-actions]

Reminder, please take a look at this pr: @Abacn @chamikaramj @ahmedabu98

[damccorm]

Does the bot not cede control any more?

It should, this looks like a bug. It could have just been a transient GHA failure, so trying again. If that doesn't work I'll look into it

[damccorm]

R: @ahmedabu98

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control. If you'd like to restart, comment assign set of reviewers

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.63%. Comparing base (84713ce) to head (178cfed).
⚠️ Report is 394 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #40094      +/-   ##
============================================
+ Coverage     57.24%   58.63%   +1.39%     
- Complexity     3696    13982   +10286     
============================================
  Files          1200     2590    +1390     
  Lines        194031   270798   +76767     
  Branches       3889    11306    +7417     
============================================
+ Hits         111070   158791   +47721     
- Misses        79366   105986   +26620     
- Partials       3595     6021    +2426     

Flag	Coverage Δ
java	65.05% <ø> (-7.01%)	⬇️

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