add alpha version suffix to profiling package (#3103)

Author: bruno-garcia

src/Sentry.Profiling/Sentry.Profiling.csproj

@@ -4,6 +4,7 @@
     <!-- TODO check and update the list of supported frameworks. -->
     <TargetFrameworks>net8.0;net6.0</TargetFrameworks>
     <PackageTags>$(PackageTags);Profiling;Diagnostic</PackageTags>
+    <VersionSuffix>-alpha.1</VersionSuffix>
     <Description>Performance profiling support for Sentry - Open-source error tracking that helps developers monitor and fix crashes in real time.</Description>
   </PropertyGroup>