[Backport 2.x] Infer edges from previous node inputs

[opensearch-trigger-bot]

Backport 0855f8f from #334.

[codecov]

Codecov Report

Attention: 416 lines in your changes are missing coverage. Please review.

Comparison is base (46c549f) 72.12% compared to head (d08d616) 71.77%.
Report is 57 commits behind head on 2.x.

Files	Patch %	Lines
...arch/flowframework/workflow/RegisterAgentStep.java	66.66%	30 Missing and 12 partials ⚠️
...framework/indices/FlowFrameworkIndicesHandler.java	12.19%	35 Missing and 1 partial ⚠️
.../transport/DeprovisionWorkflowTransportAction.java	76.42%	29 Missing and 4 partials ⚠️
.../opensearch/flowframework/util/EncryptorUtils.java	67.00%	31 Missing and 2 partials ⚠️
...ork/transport/GetWorkflowStateTransportAction.java	40.62%	19 Missing ⚠️
...mework/workflow/AbstractRetryableWorkflowStep.java	63.26%	17 Missing and 1 partial ⚠️
...flowframework/rest/RestGetWorkflowStateAction.java	48.48%	16 Missing and 1 partial ⚠️
...h/flowframework/rest/RestDeleteWorkflowAction.java	50.00%	15 Missing and 1 partial ⚠️
...wframework/rest/RestDeprovisionWorkflowAction.java	51.51%	15 Missing and 1 partial ⚠️
...ework/transport/CreateWorkflowTransportAction.java	68.00%	12 Missing and 4 partials ⚠️
... and 27 more

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x     #335      +/-   ##
============================================
- Coverage     72.12%   71.77%   -0.36%     
- Complexity      407      560     +153     
============================================
  Files            53       73      +20     
  Lines          1948     2969    +1021     
  Branches        164      224      +60     
============================================
+ Hits           1405     2131     +726     
- Misses          471      732     +261     
- Partials         72      106      +34     

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