Upgrade the upload-artifact or download-artifact actions (#9565)

### Motivation and Context

Breaking changes coming to the GitHub Actions product. [Details are
posted in the GitHub
Changelog](https://github.blog/changelog/2024-11-05-notice-of-breaking-changes-for-github-actions/).
If you use the upload-artifact or download-artifact actions, be sure you
have updated your workflows to v4

Closes #9563 

### Description

<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

Author: markwallace-microsoft

.github/workflows/dotnet-ci.yml

@@ -54,7 +54,7 @@ jobs:
         done
 
     - name: Upload dotnet test results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: dotnet-testresults-${{ matrix.configuration }}
         path: ./TestResults
@@ -120,7 +120,7 @@ jobs:
         done
 
     - name: Upload dotnet test results
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: dotnet-testresults-${{ matrix.configuration }}
         path: ./TestResults

.github/workflows/dotnet-integration-tests.yml

@@ -58,7 +58,7 @@ jobs:
           done
 
       - name: Upload dotnet test results
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: dotnet-testresults-${{ matrix.configuration }}
           path: ./TestResults