Bump to preview 7 of net9

This allows fixing the compiler bugs

Directory.Build.props

@@ -41,13 +41,6 @@
     <!-- PDB -->
     <DebugSymbols>true</DebugSymbols>
     <DebugType>embedded</DebugType>
-    <!-- Workaround for AD0001 in analyzers with .NET 9. See https://github.com/dotnet/arcade/issues/14311 -->
-    <BuildWithNetFrameworkHostedCompiler>true</BuildWithNetFrameworkHostedCompiler>
-    <!--
-      Needed to avoid error NU1010: The PackageReference items Microsoft.Net.Compilers.Toolset.Framework do not have corresponding PackageVersion.
-      Related to https://github.com/dotnet/sdk/issues/41791.
-    -->
-    <!-- <BuildWithNetFrameworkHostedCompiler>false</BuildWithNetFrameworkHostedCompiler> -->
   </PropertyGroup>
 
   <!-- Pack config -->

global.json

@@ -1,6 +1,6 @@
 {
   "tools": {
-    "dotnet": "9.0.100-preview.5.24307.3",
+    "dotnet": "9.0.100-preview.7.24367.20",
     "runtimes": {
       "dotnet": [
         "3.1.32",
@@ -14,7 +14,7 @@
     }
   },
   "sdk": {
-    "version": "9.0.100-preview.5.24307.3",
+    "version": "9.0.100-preview.7.24367.20",
     "allowPrerelease": true,
     "rollForward": "latestFeature"
   },