[internal/otelarrow/test]: Report for failed tests on main

[github-actions]

Auto-generated report for __run job build.

Link to failed build: https://github.com/open-telemetry/opentelemetry-collector-contrib/actions/runs/16766990040

Test Failures

• TestIntegrationSelfTracing

=== RUN   TestIntegrationSelfTracing
    e2e_test.go:303: 
        	Error Trace:	/home/runner/work/opentelemetry-collector-contrib/opentelemetry-collector-contrib/internal/otelarrow/test/e2e_test.go:303
        	            				/home/runner/work/opentelemetry-collector-contrib/opentelemetry-collector-contrib/internal/otelarrow/test/e2e_test.go:545
        	            				/home/runner/work/opentelemetry-collector-contrib/opentelemetry-collector-contrib/internal/otelarrow/test/e2e_test.go:249
        	            				/home/runner/work/opentelemetry-collector-contrib/opentelemetry-collector-contrib/internal/otelarrow/test/e2e_test.go:615
        	Error:      	Not equal: 
        	            	expected: 2686
        	            	actual  : 2688
        	Test:       	TestIntegrationSelfTracing
--- FAIL: TestIntegrationSelfTracing (11.10s)

Note: Information about any subsequent build failures that happen while
this issue is open, will be added as comments with more information to this issue.

[github-actions]

Pinging code owners for internal/otelarrow: @jmacd @moh-osman3. See Adding Labels via Comments if you do not have permissions to add labels yourself. For example, comment '/label priority:p2 -needs-triaged' to set the priority and remove the needs-triaged label.