Bump opentelemetry-api from 1.25.0 to 1.26.0

Bumps [opentelemetry-api](https://github.com/open-telemetry/opentelemetry-python) from 1.25.0 to 1.26.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-python/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-python/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-python@v1.25.0...v1.26.0)

---
updated-dependencies:
- dependency-name: opentelemetry-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -227,7 +227,7 @@ numpy==2.0.1
     #   zhinst-timing-models
     #   zhinst-toolkit
     #   zhinst-utils
-opentelemetry-api==1.25.0
+opentelemetry-api==1.26.0
     # via
     #   qcodes (pyproject.toml)
     #   qcodes