Restore some opentelemetry module mappings (#20749)

Several of mappings for opentelemetry packages were added/adjusted in
#20551 and then adjusted more in #20705, but the second adjustment was
based on the default fallback mapping replacing `-` with `.`, but it
actually replaces them with `_`. This restores explicit mappings for the
following (where I've downloaded the wheels and verified their
contents):

- `opentelemetry-exporter-otlp`
- `opentelemetry-exporter-otlp-proto-grpc`
- `opentelemetry-exporter-otlp-proto-http`
- `opentelemetry-sdk`

These were originally added in #16337, released in 2.14.0, so this would
be a notable regression if we released 2.20.0 without them.

Noticed in
#20705 (comment)

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

@@ -169,7 +169,11 @@ def two_groups_hyphens_two_replacements_with_suffix(
         "opentelemetry.propagators",
         "opentelemetry.trace",
     ),
+    "opentelemetry-exporter-otlp": ("opentelemetry.exporter.otlp",),
+    "opentelemetry-exporter-otlp-proto-grpc": ("opentelemetry.exporter.otlp.proto.grpc",),
+    "opentelemetry-exporter-otlp-proto-http": ("opentelemetry.exporter.otlp.proto.http",),
     "opentelemetry-instrumentation-kafka-python": ("opentelemetry.instrumentation.kafka",),
+    "opentelemetry-sdk": ("opentelemetry.sdk",),
     "opentelemetry-semantic-conventions": ("opentelemetry.semconv",),
     "opentelemetry-test-utils": ("opentelemetry.test",),
     "paho-mqtt": ("paho",),