Update whatsnew and version for cherry-pick fix

Directory.Build.props

@@ -12,8 +12,8 @@
 		<SolutionDir>$(MSBuildThisFileDirectory)</SolutionDir>
 		<AccelerateBuildsInVisualStudio>true</AccelerateBuildsInVisualStudio>
 
-		<VersionFile>3.7.7</VersionFile>
-		<VersionPrefix>3.7.7</VersionPrefix>
+		<VersionFile>3.7.6</VersionFile>
+		<VersionPrefix>3.7.6</VersionPrefix>
 		<VersionSuffix></VersionSuffix>
 		<AssemblyVersion>$(VersionFile)</AssemblyVersion>
 		<FileVersion>$(VersionFile)</FileVersion>

WHATSNEW.md

@@ -5,7 +5,7 @@
 - Improve API documentation by showing preview of default icon ([#2284](https://github.com/microsoft/fluentui-blazor/pull/2284))
 
 ### Components
-- [Autocomplete] Fix ReadOnly and Disable properties ([#2291](https://github.com/microsoft/fluentui-blazor/pull/2291))
+- [Autocomplete] Fix Disable properties ([#2291](https://github.com/microsoft/fluentui-blazor/pull/2291))
 
 ## v3.7.5
 

eng/pipelines/version.yml

@@ -2,5 +2,5 @@ variables:
   # File and Package version
   # dev  branch: 1.2.4-Preview-23282-1'    (PackageSuffix is always ignored in Dev branch)
   # main branch: 1.2.4-RC.1'               (PackageSuffix is ignored, if empty, in Main branch)
-  FileVersion: '3.7.7'   # Set the next final version here.
+  FileVersion: '3.7.6'   # Set the next final version here.
   PackageSuffix: ''

examples/Demo/Shared/wwwroot/docs/WhatsNew.md

@@ -5,7 +5,7 @@
 - Improve API documentation by showing preview of default icon ([#2284](https://github.com/microsoft/fluentui-blazor/pull/2284))
 
 ### Components
-- [Autocomplete] Fix ReadOnly and Disable properties ([#2291](https://github.com/microsoft/fluentui-blazor/pull/2291))
+- [Autocomplete] Fix Disable properties ([#2291](https://github.com/microsoft/fluentui-blazor/pull/2291))
 
 
 ## v3.7.5