fix(deps): update opentelemetry-java monorepo to v1.50.0

[elastic-renovate-prod]

This PR contains the following updates:

Package	Type	Update	Change
io.opentelemetry:opentelemetry-sdk-testing	dependencies	minor	1.49.0 -> 1.50.0
io.opentelemetry:opentelemetry-exporter-otlp	dependencies	minor	1.49.0 -> 1.50.0
io.opentelemetry:opentelemetry-sdk	dependencies	minor	1.49.0 -> 1.50.0

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Release Notes

open-telemetry/opentelemetry-java (io.opentelemetry:opentelemetry-sdk-testing)

v1.50.0

API

• Clarify that AttributesBuilder.put allows nulls
  (#​7271)
• Stabilize log record event name
  (#​7277)

Context

• Fix duplicated ExecutorService wrap
  (#​7245)
• Promote getAll to TextMapGetter stable API
  (#​7267)

Incubator

• Add ExtendedLogRecordBuilder#setException
  (#​7182)
• Add experimental support for log extended attributes
  (#​7123)

SDK

• Remove Java9VersionSpecific clock implementation
  (#​7221)
• Add addProcessorFirst to SdkTracerProviderBuilder, SdkLoggerProviderBuilder
  (#​7243)

Logs

• Add setLoggerConfigurator support to LoggerProvider
  (#​7332)

Metrics

• Add DelegatingMetricData
  (#​7229)
• Spatial aggregation for async instruments with filtering views
  (#​7264)

Exporters

• Prometheus: Add Authenticator support for PrometheusHttpServer
  (#​7225)
• OTLP: Fix OTLP metric exporter toBuilder() loosing temporality
  (#​7280)
• OTLP: Allow Otlp*MetricExporter's to publish export stats
  (#​7255)

Extensions

• Declarative config: Add support for escaping env var substitution
  (#​7033)
• Declarative config: update to opentelemetry-configuration 0.4
  (#​7064)
• Declarativeconfig: Refactor internals to add DeclarativeConfigContext
  (#​7293)

Project tooling

• Kotlin extension: Update min kotlin version to 1.8
  (#​7155)
• Add javadoc site crawler
  (#​7300,
  #​7316)

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