Bump actions/upload-artifact from 5 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 5 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v5...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/build.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Upload
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: Event File
         path: ${{ github.event_path }}
@@ -97,7 +97,7 @@ jobs:
       run: dotnet test --no-restore -- --results-directory ${{ github.workspace }}/test-results/ --report-xunit-trx
     - name: Upload Test Results
       if: always()
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: Test Results (${{ matrix.os }} ${{ matrix.configuration }} ${{ matrix.projectloadstyle }})
         path: ${{ github.workspace }}/test-results/*

.github/workflows/code-coverage.yml

@@ -63,7 +63,7 @@ jobs:
     
     - name: Upload Test Results
       if: always()
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: Code Coverage
         path: coveragereport/*

.github/workflows/package.yml

@@ -82,7 +82,7 @@ jobs:
       - name: Pack
         run: dotnet pack --no-build
       - name: Upload
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: Unsigned
           path: "artifacts/package/${{ env.Configuration }}/*"
@@ -148,7 +148,7 @@ jobs:
               --azure-key-vault-certificate "${{ secrets.SignKeyVaultCertificate }}" 
               --azure-key-vault-url "${{ secrets.SignKeyVaultUrl }}"
              
-         - uses: actions/upload-artifact@v5
+         - uses: actions/upload-artifact@v6
            with:
              name: Signed
              path: |
@@ -184,7 +184,7 @@ jobs:
         run: >
           echo ${{ github.event_name == 'release' }} >> release-info.txt
       - name: Upload Release Info
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: release-info
           path: release-info.txt