Fix missing attributes in openai_v2

[alizenhom]

Description

While testing i found out that there were missing attributes not getting set for some reason which are

• gen_ai.operation.name
• gen_ai.system
• gen_ai.request.model
• server.address

Type of change

• There is an existing util function called set_span_attributes which simply takes a dict of attributes and sets the attributes to the span, used this function -- i fear that this is redundant as we already set the span attributes when using start_as_current_span but for some reason which i failed to find out the attributes do not get set unless using set_span_attributes -- also the tests were not failing in both scenarios which confused me a bit as well.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• tox -e py312-test-instrumentation-openai-v2-1
• tox -e py312-test-instrumentation-openai-v2-0

Does This PR Require a Core Repo Change?

• No.

Checklist:

See contributing.md for styleguide, changelog guidelines, and more.

• Followed the style guidelines of this project
• Changelogs have been updated
• Unit tests have been added
• Documentation has been updated

Kindly check before & after screenshots

[xrmx]

If the tests are passing it means they are not asserting these attributes right?

[aabmass]

If the tests are passing it means they are not asserting these attributes right?

Agree with xrmx, please try to get the tests to reproduce the issue. It's possible something is wrong with the tox setup or your manual testing setup.

If the current code truly isn't working, it sounds like an OTel SDK bug we should fix.