refs and cleanup

Author: SimonCropp

src/Directory.Packages.props

@@ -13,12 +13,12 @@
     <PackageVersion Include="NUnit3TestAdapter" Version="5.1.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.157" />
     <PackageVersion Include="Polyfill" Version="8.8.1" />
-    <PackageVersion Include="System.Collections.Immutable" Version="9.0.8" />
+    <PackageVersion Include="System.Collections.Immutable" Version="9.0.9" />
     <PackageVersion Include="System.IO.Compression" Version="4.3.0" />
     <PackageVersion Include="Verify" Version="30.11.0" />
     <PackageVersion Include="Verify.MailMessage" Version="1.1.1" />
     <PackageVersion Include="Verify.NUnit" Version="30.11.0" />
     <!-- CVE -->
-    <PackageVersion Include="System.IO.Packaging" Version="9.0.8" />
+    <PackageVersion Include="System.IO.Packaging" Version="9.0.9" />
   </ItemGroup>
 </Project>

src/global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "9.0.304",
+    "version": "9.0.305",
     "allowPrerelease": true,
     "rollForward": "latestFeature"
   }