chore: bump version 9.0.0-beta01

Author: ArgoZhang

src/components/BootstrapBlazor.PdfViewer/BootstrapBlazor.PdfViewer.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>9.0.0</Version>
+    <Version>9.0.0-beta01</Version>
   </PropertyGroup>
 
   <PropertyGroup>