Bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/MigrationToolsTelemetery.yml

@@ -32,7 +32,7 @@ jobs:
     - name: Publish
       run: dotnet publish "${{ env.WORKING_DIRECTORY }}" --configuration ${{ env.CONFIGURATION }} --no-build --output "${{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}"
     - name: Publish Artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v6
       with:
         name: functionapp
         path: ${{ env.AZURE_FUNCTIONAPP_PACKAGE_PATH }}

.github/workflows/main.yml

@@ -291,7 +291,7 @@ jobs:
 
           Write-Output "-------------------------------------------"
           Write-Output "::endgroup::"
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: AzureDevOpsMigrationTools-Scripts
           path: ./build/**
@@ -441,11 +441,11 @@ jobs:
         if: ${{ steps.Build.outcome == 'success' }}
         run: |
           Get-ChildItem -Path ./staging/ -Recurse | ForEach-Object { $_.FullName }
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: AzureDevOpsMigrationTools-Packages
           path: ./staging/**
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: AzureDevOpsMigrationTools-Generated
           path: ./docs/Reference/Generated/**
@@ -487,7 +487,7 @@ jobs:
           $configFiles = "hugo.yaml,hugo.$environment.yaml"
           Write-Host "Using config files: $configFiles"
           hugo --source docs --config $configFiles --logLevel debug;
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: AzureDevOpsMigrationTools-Site2
           path: ./public/**/*