missing capture_parameters in instrumentation psycopg

[StefanoOvus]

Description

Added missing parameter capture_parameters for psycopg instrumentation:

PsycopgInstrumentor().instrument(capture_parameters=True)

populates the db.statement.parameters attribute in spans.

Fixes #3569

Type of change

Please delete options that are not relevant.

• 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?

Added tests for sync and async connection:

• instrumentation/opentelemetry-instrumentation-psycopg/tests/test_psycopg_integration.py::TestPostgresqlIntegration::test_span_params_attribute
• instrumentation/opentelemetry-instrumentation-psycopg/tests/test_psycopg_integration.py::TestPostgresqlIntegrationAsync::test_span_params_attribute

Tested in a small script with Python 3.13.3 + jaegertracing/jaeger:2.6.0 docker image (OTLP/gRPC protocol).

• tox -e py313-test-instrumentation-psycopg
• tox -e spellcheck
• tox -e lint-instrumentation-psycopg

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: StefanoOvus / (cf8670b)
• ✅login: StefanoOvus / (cf8670b, b30ad9c)

The committers listed above are authorized under a signed CLA.