feat: Add path parameter rendering feature

[jagerzhang]

Description

In the current version, path parameters are not rendered properly in the span name (e.g., GET /api/{userId}), leading to confusion for users who expect to see the relevant path information. This issue particularly affects scenarios where dynamic paths are generated.

To address this, a new optional boolean parameter, render_path_parameters, has been added to enable or disable the rendering of path parameters in the span name:

otel_fastapi.FastAPIInstrumentor().instrument_app(app, render_path_parameters=True)

With this change, the spanName GET /api/{userId} will be recorded as GET /api/123456.

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [* ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Unit tests have been added to ensure that path parameters render correctly in different scenarios.

• [*] TestFastAPIRenderPathParameters in ’tests/test_fastapi_instrumentation.py`

Does This PR Require a Core Repo Change?

• Yes. - Link to PR:
• [*] 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

[linux-foundation-easycla]

• ✅login: jagerzhang / (20d9c23)
• ✅login: jagerzhang / (20d9c23, aa3ba8a)

The committers listed above are authorized under a signed CLA.