build(deps): bump launchdarkly-api from 17.2.0 to 20.0.0 in /ci/builder

Bumps [launchdarkly-api](https://github.com/launchdarkly/api-client-python) from 17.2.0 to 20.0.0.
- [Release notes](https://github.com/launchdarkly/api-client-python/releases)
- [Changelog](https://github.com/launchdarkly/api-client-python/blob/main/docs/ReleasePipelinesBetaApi.md)
- [Commits](launchdarkly/api-client-python@17.2.0...20.0.0)

---
updated-dependencies:
- dependency-name: launchdarkly-api
  dependency-version: 20.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

ci/builder/requirements.txt

@@ -23,7 +23,7 @@ jupyterlab==4.5.0
 jupyter-black==0.4.0
 kubernetes==25.3.0
 kubernetes-stubs==22.6.0.post1
-launchdarkly-api==17.2.0
+launchdarkly-api==20.0.0
 matplotlib==3.10.8
 matplotlib-stubs==0.3.4
 # Keep on 3.4.2 for Python 3.10 compatibility