Fix test directory path in CI workflow for Linux builds

Author: 0x25CBFC4F

.github/workflows/test-and-publish.yml

@@ -31,7 +31,7 @@ jobs:
       run: dotnet build -c Release --self-contained -r linux-x64 ./NullOpsDevs.LibSsh.Test/NullOpsDevs.LibSsh.Test.csproj
 
     - name: Run tests
-      working-directory: ./NullOpsDevs.LibSsh.Test/bin/Release/net9.0
+      working-directory: ./NullOpsDevs.LibSsh.Test/bin/Release/net9.0/linux-x64/
       run: ./NullOpsDevs.LibSsh.Test
 
     - name: Cleanup Docker Compose