Release v1.2.1

Release v1.2.0

Feature: Added Async Support, GC Memory Tracking, Redaction Policies,…

… and Serilog/OTLP Sinks

github does not support net6.0 for unit testing

suppress net6.0 warnings for Demo and again fix CI errors

suppress net6.0 warnings and fix CI errors

add syslog sink

fix the github workflow