opentelemetry-instrumentation-jinja2: semantic convention stability migration

[emdneto]

What problem do you want to solve?

semantic convention stability migration for opentelemetry-instrumentation-jinja2.

Describe the solution you'd like

Implement the semconv opt-in feature for jinja2

Describe alternatives you've considered

No response

Additional Context

Part of this #2453

Would you like to implement a fix?

None

[the-chandru]

I am working on it.

[the-chandru]

changes are done, I will raise the PR soon.

[lzchen]

Closed due to #2798 (comment)