[Core] Prep changelog for release (Azure#40846)

Signed-off-by: Paul Van Eck <[email protected]>

Author: pvaneck

sdk/core/azure-core/CHANGELOG.md

@@ -1,15 +1,11 @@
 # Release History
 
-## 1.34.0 (Unreleased)
+## 1.34.0 (2025-05-01)
 
 ### Features Added
 
 - Added a `set_span_error_status` method to the `OpenTelemetryTracer` class. This method allows users to set the status of a span to `ERROR` after it has been created. #40703
 
-### Breaking Changes
-
-### Bugs Fixed
-
 ### Other Changes
 
 - Python 3.8 is no longer supported. Please use Python version 3.9 or later.

sdk/core/azure-core/azure/core/tracing/opentelemetry.py

@@ -93,7 +93,7 @@ def start_span(
         :keyword links: Links to add to the span.
         :paramtype links: list[~azure.core.tracing.Link]
         :return: The span that was started
-        :rtype: ~azure.core.tracing.Span
+        :rtype: ~opentelemetry.trace.Span
         """
         otel_kind = _KIND_MAPPINGS.get(kind, OpenTelemetrySpanKind.INTERNAL)
         otel_links = self._parse_links(links)