Bump Testcontainers from 4.11.0 to 4.12.0

---
updated-dependencies:
- dependency-name: Testcontainers
  dependency-version: 4.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -38,7 +38,7 @@
     <PackageVersion Include="SQLite" Version="3.13.0" />
     <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.5.0" />
     <PackageVersion Include="Swashbuckle.AspNetCore.Annotations" Version="6.5.0" />
-    <PackageVersion Include="Testcontainers" Version="4.11.0" />
+    <PackageVersion Include="Testcontainers" Version="4.12.0" />
     <PackageVersion Include="Testcontainers.MsSql" Version="4.11.0" />
     <PackageVersion Include="xunit.v3" Version="3.2.2" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />