Fix Jaeger instructions

[yurishkuro]

What does this PR do?

• A follow-up for add telemetry docs #572
• The command in the original PR did not run
• Remove --set command unnecessary since Jaeger 2.1.0

Test Plan

$ docker run --rm --name jaeger \
  -p 16686:16686 -p 4318:4318 \
  jaegertracing/jaeger:2.1.0
2024/12/07 19:07:13 application version: git-commit=65cff3c30823ea20d3dc48bae39d5685ae307da5, git-version=v2.1.0, build-date=2024-12-06T21:17:15Z
...

Before submitting

• This PR fixes a typo or improves the docs (you can dismiss the other checks if that's the case).
• Ran pre-commit to handle lint / formatting issues.
• Read the contributor guideline,
  Pull Request section?
• Updated relevant documentation.
• Wrote necessary unit or integration tests.

[ashwinb]

thx