Add support to ingest sys.configurations for SQL Server instances

[jmeunier28]

What does this PR do?

This PR follows on #14577, and allows us to ingest sqlserver instance configuration from the configurations view.

Motivation

Additional Notes

A good write up of what these configurations are can be found here

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• PR title must be written as a CHANGELOG entry (see why)
• Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• PR must have changelog/ and integration/ labels attached
• If the PR doesn't need to be tested during QA, please add a qa/skip-qa label.

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[codecov]

Codecov Report

Merging #15496 (a3f18d6) into master (8bb548d) will increase coverage by 0.01%.
Report is 14 commits behind head on master.
The diff coverage is 97.67%.

Flag	Coverage Δ
postgres	91.69% <100.00%> (-0.12%)	⬇️
sqlserver	87.11% <97.65%> (+0.46%)	⬆️

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[github-actions]

Test Results

     25 files       25 suites   1h 37m 21s ⏱️
   442 tests    429 ✔️   13 💤 0 ❌
3 335 runs  3 097 ✔️ 238 💤 0 ❌

Results for commit a3f18d6.

♻️ This comment has been updated with latest results.