docs(releasenotes): carry the native heap gotter release note on PR E

The feature-wide release note was dropped from the activator PR so the whole
native heap feature is announced from a single place in the stack.

Author: vlad-scherbich

releasenotes/notes/native-heap-profiling-gotter-7f3a1c9d2e5b8a04.yaml

@@ -0,0 +1,9 @@
+features:
+  - |
+    profiling: Add experimental, opt-in native (C/C++) heap allocation profiling that
+    integrates with the OpenTelemetry eBPF profiler or Datadog Host Profiler, enabled via
+    ``DD_PROFILING_NATIVE_HEAP_ENABLED=true`` together with ``DD_PROFILING_ENABLED=true``.
+    dd-trace-py arms ``ddheap:alloc`` USDT probes at profiler startup; the eBPF profiler
+    collects and processes samples outside the application process. Allocation-only in
+    this release, with live heap tracking planned for the future. It is a no-op when
+    disabled.