Bump otel/opentelemetry-collector Docker tag to v0.139.0

[renovate]

This PR contains the following updates:

Package	Update	Change
otel/opentelemetry-collector	minor	0.138.0 -> 0.139.0

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Release Notes

open-telemetry/opentelemetry-collector-releases (otel/opentelemetry-collector)

v0.139.0

Compare Source

🛑 Breaking changes 🛑

• ecstaskobserver: Removing unmaintained component (#​1232)

🚀 New components 🚀

• contrib: Add GitLab receiver to contrib distribution (#​1225)

💡 Enhancements 💡

• opampsupervisor: Add .deb and .rpm packages release artifacts for the OpAMP supervisor (#​1209)

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[martincostello]

Hmm - the OTLP integration tests are failing, but just for .NET 10:

[Error] HTTP request to https://otel-collector:5318/v1/metrics failed. Response: \x08\x0e\x12\x15sending queue is full. Exception: System.Net.Http.HttpRequestException: Response status code does not indicate success: 503 (Service Unavailable).

[martincostello]

Interesting, now it's .NET 8:

Error:            | [xUnit.net 00:00:20.78]         [Error] HTTP request to http://otel-collector:4318/v1/metrics failed. Response: \x08\x0e\x12\x15sending queue is full. Exception: System.Net.Http.HttpRequestException: Response status code does not indicate success: 503 (Service Unavailable).
tests-1           | [xUnit.net 00:00:20.78]            at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode()
tests-1           | [xUnit.net 00:00:20.78]            at OpenTelemetry.Exporter.OpenTelemetryProtocol.Implementation.ExportClient.OtlpHttpExportClient.SendExportRequest(Byte[] buffer, Int32 contentLength, DateTime deadlineUtc, CancellationToken cancellationToken) in /repo/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/Implementation/ExportClient/OtlpHttpExportClient.cs:line 34

[martincostello]

Looks like the PR has been flaky since it was opened today: workflow runs.

[martincostello]

Looks like the failure was caused by this change, which fixed a bug where the debug exporter was not applying the default queue size limit: open-telemetry/opentelemetry-collector#14101

[renovate]

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