chore: activate easy wins for @DataDog/feature-flagging-and-experimentation-sdk

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: dd-octo-sts[bot]

manifests/cpp.yml

@@ -100,7 +100,14 @@ manifest:
   tests/parametric/test_dynamic_configuration.py::TestDynamicConfigV2::test_capability_tracing_http_header_tags: irrelevant (The CPP tracer doesn't support http header tags)
   tests/parametric/test_dynamic_configuration.py::TestDynamicConfigV2::test_capability_tracing_logs_injection: irrelevant (Tracer doesn't support automatic logs injection)
   tests/parametric/test_ffe/test_dynamic_evaluation.py::Test_Feature_Flag_Dynamic_Evaluation: missing_feature
-  tests/parametric/test_ffe/test_span_enrichment.py: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py: '>=2.1.1'  # TODO: a lower version might be supported
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Child_Span_Propagation: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Default_Fallback: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Max_Experiments_Per_Subject: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Max_Serial_IDs: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Max_Subjects: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Serial_IDs: missing_feature
+  tests/parametric/test_ffe/test_span_enrichment.py::Test_Span_Enrichment_Subjects: missing_feature
   tests/parametric/test_headers_b3.py::Test_Headers_B3::test_headers_b3_extract_invalid: missing_feature (format of DD_TRACE_PROPAGATION_STYLE_EXTRACT not supported)
   tests/parametric/test_headers_b3.py::Test_Headers_B3::test_headers_b3_extract_valid: missing_feature (format of DD_TRACE_PROPAGATION_STYLE_EXTRACT not supported)
   tests/parametric/test_headers_b3.py::Test_Headers_B3::test_headers_b3_inject_valid: missing_feature (format of DD_TRACE_PROPAGATION_STYLE_EXTRACT not supported)