OTLP exporter for metrics isn't setting the user agent string #4474
Description
Describe your environment
OS: n/a
Python version: 3.11
SDK version: 1.30.0
API version: 1.30.0
What happened?
Emitting metrics using the OTLP exporter results in the User-Agent being incorrectly set to python-requests/version instead of the expected "OTel-OTLP-Exporter-Python/" + __version__,
Steps to Reproduce
Used the example flask app from opentelemetry.io and exported metrics to a backend
Expected Result
User agent to match OTel-OTLP-Exporter-Python/1.30.0
Actual Result
User agent was python-requests/2.32.3
Additional context
No response
Would you like to implement a fix?
Yes