[INS-228] Add ignorePattern configuration support to Postgres and Sqlserver detectors

[mustansir14]

Description:

This PR adds ignorePattern configuration support to the Postgres and Sqlserver detectors. It closely follows the implementation for JDBC detector

Checklist:

• Tests passing (make test-community)?
• Lint passing (make lint this requires golangci-lint)?

[camgunz]

I see that a couple other detectors have New methods, but I can't find where that's called. Do you know where that is?

[mustansir14]

I see that a couple other detectors have New methods, but I can't find where that's called. Do you know where that is?

Not really. My assumption was that enterprise calls it at some point, but I guess that's not the case?

As mentioned in the description, I closely followed JDBC detector's implementation here, which also has this New method.

[camgunz]

I found it; you're right it's in EE.

[camgunz]

This looks good! I just want to make sure this works OK if we don't call .New, because that's a separate change we'll have to make in EE, so the change I'm requesting here is to add a couple tests where we don't call .New and things work OK.

[mustansir14]

This looks good! I just want to make sure this works OK if we don't call .New, because that's a separate change we'll have to make in EE, so the change I'm requesting here is to add a couple tests where we don't call .New and things work OK.

I have added tests for SqlServer that don't call New and directly create the detector. For Postgres, these tests already exist.