opentelemetry-cpp-contrib nginx instrumentation test cases are failing on linux/ppc64le arch

Hi there,
I'm trying to build-test the nginx instrumentation on linux/ppc64le VM.
the test cases are failing because the otel/opentelemetry-collector:0.26.0 docker image isnt' available for ppc64le.
the support for ppc64le was added in v0.57.2.
but when I test nginx instrumentation with otel/opentelemetry-collector:0.58.0, the test cases are failing with following error.
18) test HTTP upstream | span is associated with parent (InstrumentationTest)             test/instrumentation_test.exs:279                                                     ** (RuntimeError) timed out waiting for traces                                        code: test_parent_span(@host, ctx)                                                    stacktrace:                                                                             test/instrumentation_test.exs:62: InstrumentationTest.read_traces/4                   test/instrumentation_test.exs:256: InstrumentationTest.test_parent_span/2             test/instrumentation_test.exs:280: (test)                                                                                                                                                                                                                                                                                                 19) test HTTP upstream | test b3 propagation (InstrumentationTest)                        test/instrumentation_test.exs:329                                                     ** (RuntimeError) timed out waiting for traces                                        code: [trace] = read_traces(trace_file, 1)                                            stacktrace:                                                                             test/instrumentation_test.exs:62: InstrumentationTest.read_traces/4                   test/instrumentation_test.exs:338: (test)                                                                                                                                                                                                                                                                                                 20) test Accessing a route with disabled trustIncomingsSpans is not associated with a parent (InstrumentationTest)                                                                                                      test/instrumentation_test.exs:422                                                     ** (RuntimeError) timed out waiting for traces                                        code: [trace] = read_traces(trace_file, 1)                                            stacktrace:                                                                             test/instrumentation_test.exs:62: InstrumentationTest.read_traces/4                   test/instrumentation_test.exs:432: (test)                                                                                                                         [+] Running 5/5                                                                      ⠿ Container test-node-backend-1    Removed 1.5ss                                      ⠿ Container test-php-backend-1     Removed 1.9ss                                      ⠿ Container test-collector-1       Removed 1.7ss                                      ⠿ Container test-nginx-1           Removed 1.6ss                                      ⠿ Network test_default             Removed 0.3ss                                                                                                                                                                                                              Finished in 29.1 seconds                                                             22 tests, 20 failures Adilhusain Shaikh Today at 5:33 PM.  grouping

Steps to reproduce
clone repo
cd into it
cd test/instrumentation
mix dockerfiles .. ubuntu-20.04:mainline
docker build -t otel-nginx-test/nginx -f ../Dockerfile.ubuntu-20.04.mainline ../..
docker build -t otel-nginx-test/express-backend -f ../backend/simple_express/Dockerfile ../backend/simple_express
sed -i "s/0.26.0/0.58.0/" ../docker-compose.yml
mix test

also try out the samething on x86 VM and observe the same error

What is the expected behavior?
the test cases should pass.

What is the actual behavior?
the test cases are failing.

Additional context
os: rhel 8.5
arch: ppc64le

Start by reproducing the failure from test/instrumentation with the commands in the issue, then inspect test/instrumentation_test.exs and test/docker-compose.yml around the collector image and trace timeouts. Compare behavior on ppc64le and x86, and consider the reported collector versions. Done means the nginx instrumentation test suite completes without trace timeouts on the affected architecture.