Silence some pylint4 warnings (#4272)

* pylint: use unnecessary-dunder-call instead of E1101

Since pylint 4 now raises a different error code

* opentelemetry-instrumentation-sqlite3: fix pylint warnings

Possibly using variable 'root_span' before assignment (possibly-used-before-assignment)
Possibly using variable 'child_span' before assignment (possibly-used-before-assignment)

* opentelemetry-instrumentation-botocore: silence a bunch of pylint warnings

In the form of
Possibly using variable '<var>' before assignment (possibly-used-before-assignment)

* opentelemetry-instrumentation-redis: remove useless return spotted by pylint

* opentelemetry-instrumentation-fastapi: silence some pylint warnings

E0102: function already defined line 2034 (function-redefined)

* opentelemetry-instrumentation-google-genai: fix pylint warnings

Assisted by Cursor.

* opentelemetry-instrumentation-openai-v2: fix pylint 4 errors

Assisted by Cursor

* opentelemetry-instrumentation-elasticsearch: fix pylint 4 errors

Assisted by Cursor.

* opentelemetry-instrumentation-pika: fix pylint 4 errors

Assisted by cursor.

* opentelemetry-instrumentation-starlette: fix pylint 4 errors

* opentelemetry-instrumentation: fix pylint 4 errors

Assisted by Cursor.

* opentelemetry-util-http: fix pylint 4 errors