feat: support github.com/elastic/go-elasticsearch

[rarguelloF]

Adds support for:

• github.com/elastic/go-elasticsearch/v6
• github.com/elastic/go-elasticsearch/v7
• github.com/elastic/go-elasticsearch/v8

[codecov]

Codecov Report

Attention: Patch coverage is 86.06557% with 17 lines in your changes missing coverage. Please review.

Project coverage is 61.38%. Comparing base (7d24aff) to head (98617fd).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
_integration-tests/tests/go-elasticsearch/v6.go	15.00%	16 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #347      +/-   ##
==========================================
+ Coverage   57.91%   61.38%   +3.46%     
==========================================
  Files         153      155       +2     
  Lines       11124     9667    -1457     
==========================================
- Hits         6443     5934     -509     
+ Misses       4213     3262     -951     
- Partials      468      471       +3     

Components	Coverage Δ
Generators	78.35% <100.00%> (+1.37%)	⬆️
Instruments	88.05% <ø> (ø)
Go Driver	80.24% <ø> (+7.43%)	⬆️
Toolexec Driver	74.29% <ø> (+3.41%)	⬆️
Aspects	77.12% <ø> (+6.26%)	⬆️
Injector	77.35% <ø> (+4.21%)	⬆️
Job Server	69.81% <ø> (+5.79%)	⬆️
Integration Test Suite	51.20% <86.06%> (+2.93%)	⬆️
Other	61.38% <86.06%> (+3.46%)	⬆️

Files with missing lines	Coverage Δ
_integration-tests/tests/go-elasticsearch/base.go	100.00% <100.00%> (ø)
_integration-tests/tests/go-elasticsearch/v7.go	100.00% <100.00%> (ø)
_integration-tests/tests/go-elasticsearch/v8.go	100.00% <100.00%> (ø)
_integration-tests/utils/generator/main.go	75.34% <100.00%> (+11.70%)	⬆️
_integration-tests/tests/go-elasticsearch/v6.go	15.00% <15.00%> (ø)

... and 132 files with indirect coverage changes