[Backport 2.0] Remove endpoint_suffix dependency on account key

[opensearch-trigger-bot]

Backport 365e07c from #2485

[opensearch-ci-bot]

✅   Gradle Check success 8d923c4
Log 4170

Reports 4170

[dblock]

@raphlopez I am afraid you'll have to manually backport this, see DCO error (not sure what the right way to fix that is)

@nknize do we want to backport this into 2.0 or not?

[raphlopez]

@dblock thanks for the info. On a similar note, is there any possibility for this to be backported into the next 1.x release? I'm still not quite familiar with the release cycles for this project, so any info on if/how that can be achieved would be appreciated.

[dblock]

@dblock thanks for the info. On a similar note, is there any possibility for this to be backported into the next 1.x release? I'm still not quite familiar with the release cycles for this project, so any info on if/how that can be achieved would be appreciated.

There's not going to be a 1.4 (next is 2.0) and 1.3.x is only taking security fixes AFAIK. @CEHENKLE what's the guideline for this?

[tlfeng]

The PR is replaced by #2808 due to the DCO check failure (#2761 (comment)).

[dblock]

Thanks for doing these @raphlopez

#2808
#2807