OpenTelemetry Jinja2 Instrumentation

The `opentelemetry-instrumentation-jinja2` library provides OpenTelemetry instrumentation for Jinja2, automatically tracing template loading, compilation, and rendering operations. It is part of the `opentelemetry-python-contrib` repository, which typically follows a monthly release cadence. As of the current version, many instrumentations within this contrib repository are still in a beta state, indicating ongoing development and potential for API changes.