Distro release 1.8.1 (#43013)

* Distro release 1.8.1

* Updated release date to next day

* Trigger CI/CD pipeline

Author: rads-1996

sdk/monitor/azure-monitor-opentelemetry/CHANGELOG.md

@@ -1,17 +1,11 @@
 # Release History
 
-## 1.8.1 (Unreleased)
-
-### Features Added
-
-### Breaking Changes
+## 1.8.1 (2025-09-16)
 
 ### Bugs Fixed
 - Fixed version pinned for opentelemetry-sdk to resolve dependency conflicts.
   ([#43012](https://github.com/Azure/azure-sdk-for-python/pull/43012))
 
-### Other Changes
-
 ## 1.8.0 (2025-09-08)
 
 ### Features Added