Bump the all-dependencies group with 1 update (#566)

Bumps Testcontainers.K3s from 4.8.0 to 4.8.1

---
updated-dependencies:
- dependency-name: Testcontainers.K3s
  dependency-version: 4.8.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all-dependencies
...

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Author: dependabot[bot]

Directory.Packages.props

@@ -18,7 +18,7 @@
     <PackageVersion Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.21.2" />
     <PackageVersion Include="Moq" Version="4.20.72" />
     <PackageVersion Include="Polly.Core" Version="8.6.4" />
-    <PackageVersion Include="Testcontainers.K3s" Version="4.8.0" />
+    <PackageVersion Include="Testcontainers.K3s" Version="4.8.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
     <PackageVersion Include="xunit.v3" Version="3.1.0" />
   </ItemGroup>