chore(deps): update dependency testcontainers to 4.9.0

Author: renovate[bot]

test/Zeebe.Client.Accelerator.Integration.Tests/Zeebe.Client.Accelerator.Integration.Tests.csproj

@@ -17,7 +17,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Testcontainers" Version="4.7.0" />
+    <PackageReference Include="Testcontainers" Version="4.9.0" />
   </ItemGroup>
 
   <ItemGroup>