re-add missing opentelemetry.util module mapping (pantsbuild#20804)

In pantsbuild#20551 the opentelemetry module mappings were expanded -- yeah! --
but in the transition of `opentelemetry-api` from a wildcard to explicit
list, this sub-module was missed.

See
https://github.com/open-telemetry/opentelemetry-python/tree/v1.24.0/opentelemetry-api/src/opentelemetry

src/python/pants/backend/python/dependency_inference/default_module_mapping.py

@@ -168,13 +168,16 @@ def two_groups_hyphens_two_replacements_with_suffix(
     # opentelemetry
     "opentelemetry-api": (
         "opentelemetry._logs",
+        "opentelemetry.attributes",
         "opentelemetry.baggage",
         "opentelemetry.context",
         "opentelemetry.environment_variables",
         "opentelemetry.metrics",
         "opentelemetry.propagate",
         "opentelemetry.propagators",
         "opentelemetry.trace",
+        "opentelemetry.util",
+        "opentelemetry.version",
     ),
     "opentelemetry-exporter-otlp": ("opentelemetry.exporter.otlp",),
     "opentelemetry-exporter-otlp-proto-grpc": ("opentelemetry.exporter.otlp.proto.grpc",),