Upgrades Index Management to use 2.0.0-alpha1 of OpenSearch and depen…

[dbbaughe]

…dencies

Signed-off-by: Drew Baugher 46505179+dbbaughe@users.noreply.github.com

Description of changes:

• Drops support for JDK 8 and 14
• Adds support for JDK 17
• Upgrades kotlin to 1.6.10
• Temporarily comments out usages of notification as a follow up PR will add the new integration w/ the Notification plugin that is being released in 2.0
• Upgrades OpenSearch/dependencies to 2.0.0
• Upgrades gradle to 7.3.3
• Removes usages of _DOC type
• Fixes breaking changes of internal API calls
• Fixes styling issues
• Updates CI to new version
• Temporarily increase detekt issues to 20 as a bunch added for the commented out notification stuff which will get fixed in follow up PR.

Issues:
#303

CheckList:

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[dbbaughe]

Looks like the mappings do not have the properties field in them anymore which is breaking the logic to check for the existence of a field in a mapping in rollups, will update the logic.

I guess that's not true... just the tests were passing in the mapping source to the MappingMetadata which was then using the "properties" key as the "type" and causing issues, it seems it still expects _doc to be passing in.

[codecov-commenter]

Codecov Report

Merging #318 (ca5d48f) into main (901d887) will increase coverage by 0.73%.
The diff coverage is 75.86%.

@@             Coverage Diff              @@
##               main     #318      +/-   ##
============================================
+ Coverage     75.73%   76.46%   +0.73%     
- Complexity     2003     2041      +38     
============================================
  Files           253      253              
  Lines         11467    11636     +169     
  Branches       1815     1807       -8     
============================================
+ Hits           8685     8898     +213     
- Misses         1751     1764      +13     
+ Partials       1031      974      -57     

Impacted Files	Coverage Δ
...agement/indexstatemanagement/ManagedIndexRunner.kt	45.95% <0.00%> (-4.97%)	⬇️
...exstatemanagement/model/destination/Destination.kt	81.48% <ø> (+32.73%)	⬆️
...ement/step/notification/AttemptNotificationStep.kt	9.37% <0.00%> (-53.13%)	⬇️
...t/action/indexpolicy/TransportIndexPolicyAction.kt	80.55% <0.00%> (+3.41%)	⬆️
...ent/indexstatemanagement/util/ManagedIndexUtils.kt	77.83% <ø> (-0.48%)	⬇️
...ensearch/indexmanagement/rollup/model/ISMRollup.kt	96.52% <ø> (+1.78%)	⬆️
...ndexmanagement/transform/TransformSearchService.kt	67.81% <ø> (+2.13%)	⬆️
...ch/indexmanagement/transform/TransformValidator.kt	63.63% <50.00%> (+5.63%)	⬆️
...ensearch/indexmanagement/IndexManagementIndices.kt	63.21% <100.00%> (+2.50%)	⬆️
...ndexstatemanagement/IndexStateManagementHistory.kt	80.00% <100.00%> (-0.15%)	⬇️
... and 198 more

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