`otel.resource.attributes` still not working in 1.52.0-alpha despite [#1416](https://github.com/open-telemetry/opentelemetry-java-contrib/issues/1416) fix

Component(s)

maven-extension

What happened?

Description

We are experiencing the same issue as #1416 where otel.resource.attributes and OTEL_RESOURCE_ATTRIBUTES are not applied to the Maven extension's resource, even in versions claimed to be fixed.

Steps to Reproduce

mvn -X clean verify -Dotel.resource.attributes="test.key=static,another.key=123"

Expected Result

Custom attributes from otel.resource.attributes should appear in the Maven service's resource.

Actual Result

Only default attributes appear

Working version

Tested 1.26.0-alpha - custom attributes do appear in resource.

Component version

v1.52.0

Log output

Maven debug log shows:

[INFO] OpenTelemetry: Initialize OpenTelemetrySdkService v1.52.0-alpha...
[DEBUG] OpenTelemetry: OTLP exporter endpoint is explicitly configured
[DEBUG] OpenTelemetry: OpenTelemetrySdkService initialized, resource:Resource{schemaUrl=null, attributes={service.name="maven", service.version="3.9.11", telemetry.distro.name="opentelemetry-maven-extension", telemetry.distro.version="1.52.0-alpha", telemetry.sdk.language="java", telemetry.sdk.name="opentelemetry", telemetry.sdk.version="1.56.0"}}

No test.key or another.key in the resource.

Additional context

No response

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