Update opentracing and opencesus docs examples to not use JaegerExporter

[emdneto]

Describe your environment

No response

What happened?

Through this search found there are two examples using JaegerExporter.

Since v1.35, the Jaeger supports OTLP natively. Please use the OTLP exporter instead. Support for this exporter will end July 2023.

Steps to Reproduce

Search for JaegerExporter

Expected Result

Examples must use OTLP exporter instead. Also update README.rst files accordingly (instructions on how to run the examples and packages to install),

Actual Result

Examples are using JaegerExporter

Additional context

No response

Would you like to implement a fix?

No