fix(deps): update rust crate tonic-tracing-opentelemetry to 0.19.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
tonic-tracing-opentelemetry (source)	dependencies	minor	0.18.2 -> 0.19.0

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Release Notes

davidB/tracing-opentelemetry-instrumentation-sdk (tonic-tracing-opentelemetry)

### [`v0.19.0`](https://togithub.com/davidB/tracing-opentelemetry-instrumentation-sdk/releases/tag/axum-tracing-opentelemetry-v0.19.0) [Compare Source](https://togithub.com/davidB/tracing-opentelemetry-instrumentation-sdk/compare/tonic-tracing-opentelemetry-v0.18.2...tonic-tracing-opentelemetry-v0.19.0) ##### Other - 👷 tune release-plz - ✏️ Fix broken /examples URLs ([#​129](https://togithub.com/davidB/tracing-opentelemetry-instrumentation-sdk/pull/129))

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