fix: Correct working directory paths for API and Blazor container image publishing

Author: iammukeshm

.github/workflows/build-and-push-containers.yml

@@ -30,12 +30,12 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Publish API container image
-        working-directory: src/Playground/Playground.Api/Playground.Api.csproj
+        working-directory: ../src/Playground/Playground.Api/Playground.Api.csproj
         run: |
           dotnet publish -c Release -p:RuntimeIdentifier=linux-x64 -p:ContainerRepository=${{ github.repository_owner }}/fsh-playground-api -p:ContainerImageTags='${{ github.sha }};latest'
 
       - name: Publish Blazor container image
-        working-directory: src/Playground/Playground.Blazor/Playground.Blazor.csproj
+        working-directory: ../src/Playground/Playground.Blazor/Playground.Blazor.csproj
         run: |
           dotnet publish -c Release -p:RuntimeIdentifier=linux-x64 -p:ContainerRepository=${{ github.repository_owner }}/fsh-playground-blazor -p:ContainerImageTags='${{ github.sha }};latest'