[release/9.0-staging] Update dependencies from dotnet/icu (#115597)

* Update dependencies from https://github.com/dotnet/icu build 20250514.2

Microsoft.NETCore.Runtime.ICU.Transport
 From Version 9.0.0-rtm.25258.1 -> To Version 9.0.0-rtm.25264.2

* Update dependencies from https://github.com/dotnet/icu build 20250516.1

Microsoft.NETCore.Runtime.ICU.Transport
 From Version 9.0.0-rtm.25258.1 -> To Version 9.0.0-rtm.25266.1

* Update dependencies from https://github.com/dotnet/icu build 20250519.1

Microsoft.NETCore.Runtime.ICU.Transport
 From Version 9.0.0-rtm.25258.1 -> To Version 9.0.0-rtm.25269.1

* Update dependencies from https://github.com/dotnet/icu build 20250523.1

Microsoft.NETCore.Runtime.ICU.Transport
 From Version 9.0.0-rtm.25258.1 -> To Version 9.0.0-rtm.25273.1

* Update dependencies from https://github.com/dotnet/icu build 20250526.1

Microsoft.NETCore.Runtime.ICU.Transport
 From Version 9.0.0-rtm.25258.1 -> To Version 9.0.0-rtm.25276.1

* Update dependencies from https://github.com/dotnet/icu build 20250604.1

Microsoft.NETCore.Runtime.ICU.Transport
 From Version 9.0.0-rtm.25258.1 -> To Version 9.0.0-rtm.25304.1

---------

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Author: dotnet-maestro[bot]

eng/Version.Details.xml

@@ -1,8 +1,8 @@
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="9.0.0-rtm.25258.1">
+    <Dependency Name="Microsoft.NETCore.Runtime.ICU.Transport" Version="9.0.0-rtm.25304.1">
       <Uri>https://github.com/dotnet/icu</Uri>
-      <Sha>b4460540fa31432ce4ee63a052bb87228606eb87</Sha>
+      <Sha>9b4ea0e745c0324fb4a9eb6dbae0a31e363fcc35</Sha>
     </Dependency>
     <Dependency Name="System.Net.MsQuic.Transport" Version="9.0.0-alpha.1.24167.3">
       <Uri>https://github.com/dotnet/msquic</Uri>

eng/Versions.props

@@ -219,7 +219,7 @@
     <!-- ILCompiler -->
     <MicrosoftDotNetILCompilerVersion>9.0.0-rtm.24511.16</MicrosoftDotNetILCompilerVersion>
     <!-- ICU -->
-    <MicrosoftNETCoreRuntimeICUTransportVersion>9.0.0-rtm.25258.1</MicrosoftNETCoreRuntimeICUTransportVersion>
+    <MicrosoftNETCoreRuntimeICUTransportVersion>9.0.0-rtm.25304.1</MicrosoftNETCoreRuntimeICUTransportVersion>
     <MicrosoftNETCoreRuntimeICUTransportVersion>9.0.0-rtm.24466.4</MicrosoftNETCoreRuntimeICUTransportVersion>
     <!-- MsQuic -->
     <MicrosoftNativeQuicMsQuicSchannelVersion>2.4.8</MicrosoftNativeQuicMsQuicSchannelVersion>