…tracer() (#9941)
Resolves incompatibility introduced by:
open-telemetry/opentelemetry-python@d4e13bd.
In `opentelemetry-api==1.26.0`,
`ddtrace.opentelemetry.TracerProvider.get_tracer(...)` gets called with
attributes argument
([here](https://github.com/open-telemetry/opentelemetry-python/blob/v1.26.0/opentelemetry-api/src/opentelemetry/trace/__init__.py#L519)).
This optional argument is not currently supported in ddtrace and this
raises a TypeError when ddtrace-opentelemetry support is enabled.
This PR resolves this incompatibility by providing two implementations
for `ddtrace.opentelemetry.TracerProvider.get_tracer`, one for
opentelemetry-api>=1.26 and one for opentelemetry<1.26.
- [x] PR author has checked that all the criteria below are met
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- The PR description articulates the motivation for the change
- The change includes tests OR the PR description describes a testing
strategy
- The PR description notes risks associated with the change, if any
- Newly-added code is easy to change
- The change follows the [library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
- The change includes or references documentation updates if necessary
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[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))
- [x] Reviewer has checked that all the criteria below are met
- Title is accurate
- All changes are related to the pull request's stated goal
- Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- Testing strategy adequately addresses listed risks
- Newly-added code is easy to change
- Release note makes sense to a user of the library
- If necessary, author has acknowledged and discussed the performance
implications of this PR as reported in the benchmarks PR comment
- Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)