Bump System.Configuration.ConfigurationManager from 9.0.7 to 9.0.9

---
updated-dependencies:
- dependency-name: System.Configuration.ConfigurationManager
  dependency-version: 9.0.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/NHapi.SourceGeneration/NHapi.SourceGeneration.csproj

@@ -15,7 +15,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.7" />
+    <PackageReference Include="System.Configuration.ConfigurationManager" Version="9.0.9" />
     <PackageReference Include="System.Data.OleDb" Version="9.0.7" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118">
       <PrivateAssets>all</PrivateAssets>